The 24 Mountains Explained: The Eight Stems, Twelve Branches, and Four Corners — Element Assignments, Solar Terms, Sitting/Facing Determination, Three Harmonies and Six Clashes, and Matching Your Life Trigram • TIMEACTOR

Where the 24 Mountains Came From — How Ancient Scholars Divided 360 Degrees into 24 Sectors

The 24 Mountains — The Feng Shui Practitioner's Spatial Coordinate System, the Most Important Ring on the Compass

The 24 Mountains are the most fundamental layer on the feng shui compass. They divide the 360-degree circle into 24 equal directional sectors. Each sector spans exactly 15 degrees. The 24 Mountains trace back to Han-dynasty earth plates. They were built by layering three systems on top of each other: eight Heavenly Stems (Jia, Yi, Bing, Ding, Geng, Xin, Ren, Gui) mark the four cardinal directions and their left-right offsets. Twelve Earthly Branches (Zi through Hai) mark 12 basic directions at roughly 30 degrees each. Four Corner Trigrams (Qian, Kun, Gen, Xun) fill the gaps at the four diagonal corners. Stack them together and you get exactly 24 directional markers. Understanding the structure of the 24 Mountains and the properties of each mountain is basic feng shui literacy. When you see any direction, you need to be able to name — within three seconds — what mountain it is, what its Five Element is, which trigram it belongs to, during which solar term the sun shines directly on this direction (sun-arrives-at-mountain), and which other mountains form Three Harmony or Six Clash relationships with it. This article gives you a full walk-through of the 24 Mountains, designed to build muscle memory for the feng shui spatial coordinate system.

The 24 Mountains formula: 8 Heavenly Stems + 4 Corner Trigrams + 12 Earthly Branches = 24 mountains. Full clockwise sequence from due north: Zi → Gui → Chou → Gen → Yin → Jia → Mao → Yi → Chen → Xun → Si → Bing → Wu → Ding → Wei → Kun → Shen → Geng → You → Xin → Xu → Qian → Hai → Ren → (back to Zi). Each mountain = 15 degrees. 24 × 15 = 360 degrees. Zi mountain = due north (0°). Wu mountain = due south (180°). Mao mountain = due east (90°). You mountain = due west (270°). The eight stems flank the four cardinal directions: north has Ren-Zi-Gui (Ren northwest of north, Zi due north, Gui northeast of north). South has Bing-Wu-Ding. East has Jia-Mao-Yi. West has Geng-You-Xin. The four corner trigrams sit at the diagonals: Qian = northwest, Kun = southwest, Gen = northeast, Xun = southeast.

1. The Full Composition of the 24 Mountains — Eight Stems, Twelve Branches, Four Corners, Each with Its Own Job

The 24 Mountains are built from three sub-systems. Each plays a different role in the overall architecture. The Eight Heavenly Stems mark the left and right offsets of the four cardinal directions. Jia and Yi = the left and right of east (Jia sits northeast of Mao, Yi sits southeast of Mao). Bing and Ding = the left and right of south. Geng and Xin = the left and right of west. Ren and Gui = the left and right of north. Note: the stems Wu and Ji (central earth) do not appear in the 24 Mountains. They represent the center, not a direction — Wu and Ji belong to the central palace and do not participate in directional positioning. Five Elements of the eight stems: Jia-Yi = Wood. Bing-Ding = Fire. Geng-Xin = Metal. Ren-Gui = Water. They follow the element of their home direction. The Twelve Earthly Branches distribute themselves evenly around the circle. Between every two branches sits either a stem or a corner trigram. Zi, Wu, Mao, and You are the four cardinal peaks — due north, due south, due east, due west. These four branches are the pure center of each directional zone. The Five Elements of the branches match their Ba Zi (Chinese astrology) assignments: Hai-Zi = Water. Yin-Mao = Wood. Si-Wu = Fire. Shen-You = Metal. Chen-Xu-Chou-Wei = Earth. The Four Corner Trigrams — Qian, Kun, Gen, Xun — occupy the four diagonal positions. Qian sits in the northwest (between Xu and Hai). Kun sits in the southwest (between Wei and Shen). Gen sits in the northeast (between Chou and Yin). Xun sits in the southeast (between Chen and Si). The Five Elements of the corner trigrams are not simply the trigram's own element. Qian trigram = Metal (Qian is heaven, metal carries the energy of hardness). Kun trigram = Earth (Kun is earth, the carrier of all things). Gen trigram = Earth (Gen is mountain, mountain is piled earth). Xun trigram = Wood (Xun is wind, wind enters grass and trees and moves them). The full clockwise sequence, from due north Zi mountain: Zi (due north, 0°-15°) → Gui (north-by-east, 15°-30°) → Chou (northeast-by-north, 30°-45°) → Gen (northeast, 45°-60°) → Yin (northeast-by-east, 60°-75°) → Jia (east-by-north, 75°-90°) → Mao (due east, 90°-105°) → Yi (east-by-south, 105°-120°) → Chen (southeast-by-east, 120°-135°) → Xun (southeast, 135°-150°) → Si (southeast-by-south, 150°-165°) → Bing (south-by-east, 165°-180°) → Wu (due south, 180°-195°) → Ding (south-by-west, 195°-210°) → Wei (southwest-by-south, 210°-225°) → Kun (southwest, 225°-240°) → Shen (southwest-by-west, 240°-255°) → Geng (west-by-south, 255°-270°) → You (due west, 270°-285°) → Xin (west-by-north, 285°-300°) → Xu (northwest-by-west, 300°-315°) → Qian (northwest, 315°-330°) → Hai (northwest-by-north, 330°-345°) → Ren (north-by-west, 345°-360°/0°). Memory chant: Zi Gui Chou Gen Yin Jia Mao, Yi Chen Xun Si Bing Wu Ding, Wei Kun Shen Geng You Xin Xu, Qian Hai Ren — back to Zi. This clockwise sequence must become muscle memory. Every subsequent judgment — sitting/facing, Three Harmonies, Six Clashes, life trigram matching — is built on this sequence.

2. Five Element Nature and Solar Term Correspondence for Each Mountain (Sun-Arrives-at-Mountain)

The 24 Mountains are not just a spatial positioning system. They are also a temporal one. Ancient scholars discovered that the sun's annual apparent motion along the ecliptic maps precisely onto the 24 Mountains. This gave rise to the concepts of sun-arrives-at-mountain and sun's Three Harmony illumination. Sun-arrives-at-mountain: during the year, the sun shines directly on a given mountain direction during a specific period. At that time, the Qi of that direction is at its peak. The pattern follows the 24 solar terms. The sun reaches due north Zi mountain at the winter solstice (around December 21) — this is when the sun is at its southernmost, and the northern hemisphere has its shortest day. From there, the sun moves northward roughly 1 degree per day (about one mountain every 15 days), reaching due south Wu mountain at the summer solstice (around June 21) — the sun's northernmost point, longest day in the northern hemisphere. Complete solar-term-to-mountain table (each mountain covers roughly 15 days, aligned with one solar term): Zi = Winter Solstice (~Dec 21). Gui = Minor Cold (~Jan 5). Chou = Major Cold (~Jan 20). Gen = Start of Spring (~Feb 4). Yin = Rain Water (~Feb 19). Jia = Awakening of Insects (~Mar 5). Mao = Spring Equinox (~Mar 21). Yi = Clear and Bright (~Apr 5). Chen = Grain Rain (~Apr 20). Xun = Start of Summer (~May 5). Si = Grain Full (~May 21). Bing = Grain in Ear (~Jun 5). Wu = Summer Solstice (~Jun 21). Ding = Minor Heat (~Jul 7). Wei = Major Heat (~Jul 23). Kun = Start of Autumn (~Aug 7). Shen = Limit of Heat (~Aug 23). Geng = White Dew (~Sep 7). You = Autumn Equinox (~Sep 23). Xin = Cold Dew (~Oct 8). Xu = Frost Descent (~Oct 23). Qian = Start of Winter (~Nov 7). Hai = Minor Snow (~Nov 22). Ren = Major Snow (~Dec 7). Practical use of sun-arrives-at-mountain: when renovating or moving into a house, if the house sits on Mao mountain (due east), the best time to start construction or move in is when the sun is at Mao mountain — around the spring equinox (March 21). During this window, the sun shines directly on the house's sitting direction. The sitting mountain receives peak yang energy. Everything goes more smoothly. If you start construction during the month when the sun is at the opposite mountain — Wu month (summer solstice, sun at Wu, which is exactly opposite Mao) — the sun hits the back of the sitting mountain. The sitting mountain loses energy. That's a bad window for construction. Similarly, the best time to move into a house is when the sun arrives at the facing direction — the front of the house receives peak energy. A more advanced application: sun's Three Harmony illumination. When the sun arrives at one mountain of a Three Harmony group, the other two mountains in that group receive indirect energy support. Example: Hai-Mao-Wei form the Wood Three Harmony group. When the sun arrives at Hai mountain, Mao mountain (in an east-facing house) doesn't get direct sun on its sitting direction — but because Hai, Mao, and Wei are a Three Harmony set, Mao still gets an indirect boost.

3. How to Read Sitting and Facing from the Compass — The Step-by-Step Method

Sitting and facing are the starting point of every feng shui judgment. Sitting is the direction the house's back leans against. Facing is the direction the house's front looks toward. Sitting and facing are always exactly opposite — 180 degrees apart, 12 mountains apart. The sitting/facing determination has five steps. Step 1: Identify your measurement reference plane. The front (facing) of a house is usually the wall with the main door, or the wall with the largest light openings (floor-to-ceiling windows, balcony). If you can't tell which is the front (complex mixed-use buildings), use the largest opening as the facing side. Step 2: Position yourself for measurement. Stand outside the house, facing the front of the house, with your back to it. Stand about 3-5 meters away — far enough to avoid rebar and vehicle interference. Hold the compass level. Note: indoor measurement can introduce 10-30 degrees of magnetic deviation from rebar, appliances, and elevator shafts. Outdoor measurement always beats indoor measurement. Step 3: Rotate the compass so the magnetic needle aligns with the north-south reference line on the compass. At this point, the Zi marking on the compass points to true magnetic north. Step 4: Read the facing. Look at which 24 Mountains marking the radial line pointing toward your face passes through. That's the facing mountain. Example: you face the house's front. The radial line pointing at you passes through the Wu marking. The facing is Wu mountain — the house faces south. Step 5: Read the sitting. The opposite of facing is sitting. Facing plus 12 mountains = sitting. If the result exceeds 24, subtract 24. Facing Wu (mountain 13), sitting is Zi (mountain 1). Zi-Wu is the classic north-south orientation. Precision requirement: each mountain spans 15 degrees. You must determine exactly which mountain the facing falls in. It's not enough to say roughly south. Roughly Wu is wrong. Wu mountain center line, 2 degrees left is professional. Common sitting-facing pairs: Zuo Zi Xiang Wu (sit north, face south). Zuo Gui Xiang Ding (sit north-by-east, face south-by-west). Zuo Chou Xiang Wei (sit northeast-by-north, face southwest-by-south). Zuo Gen Xiang Kun (sit northeast, face southwest). Zuo Yin Xiang Shen. Zuo Jia Xiang Geng. Zuo Mao Xiang You (sit east, face west). Zuo Yi Xiang Xin. Zuo Chen Xiang Xu. Zuo Xun Xiang Qian (sit southeast, face northwest). Zuo Si Xiang Hai. Zuo Bing Xiang Ren. Quick lookup: memorize the facing mountain, add or subtract 12. The 12 opposite pairs: Zi-Wu, Gui-Ding, Chou-Wei, Gen-Kun, Yin-Shen, Jia-Geng, Mao-You, Yi-Xin, Chen-Xu, Xun-Qian, Si-Hai, Bing-Ren. Why sitting and facing matter: sitting determines what energy the house leans against from behind. Facing determines what energy the house takes in from the front. The sitting side likes stillness, height, and support — a hill or tall building behind you. The facing side likes openness, brightness, and water — a plaza, pond, or flat open land in front. Get the sitting and facing wrong, and every subsequent Compass School calculation — Eight Mansions, Flying Stars, Three Harmonies — is built on a faulty foundation. A hair's breadth off at the start, a mile off at the end.

4. Three Harmonies and Six Clashes — Lucky and Unlucky Relationships Between Mountains

The 24 Mountains don't sit in isolation. They have complex relational patterns. The two most important are Three Harmonies and Six Clashes. These patterns directly determine whether directional combinations are lucky or unlucky. Three Harmonies — derived from the Earthly Branch Three Harmony groups, each set of three mountains forms a Three Harmony team. There are four Three Harmony groups in the 24 Mountains: Shen-Zi-Chen = Water Three Harmony. Shen (southwest-by-west), Zi (due north), Chen (southeast-by-east) — together these three mountains form a complete Water energy cycle. Hai-Mao-Wei = Wood Three Harmony. Hai (northwest-by-north), Mao (due east), Wei (southwest-by-south). Yin-Wu-Xu = Fire Three Harmony. Yin (northeast-by-east), Wu (due south), Xu (northwest-by-west). Si-You-Chou = Metal Three Harmony. Si (southeast-by-south), You (due west), Chou (northeast-by-north). What Three Harmonies mean in practice: the three mountains represent three phases of the same elemental energy — growth (zhang sheng), peak (di wang), and storage (mu ku). Shen is Water's growth phase (Water emerges from Metal). Zi is Water's peak. Chen is Water's storage (Water returns to the reservoir). If three rooms in a house each fall on the three mountains of one Three Harmony group, those rooms form a complete energy circuit that supports each other. Example: a kitchen on Si mountain (Metal Three Harmony growth), a bedroom on You mountain (Metal peak), and a study on Chou mountain (Metal storage) — Metal energy flows through the whole house, supporting the female household head's career and domestic management. Six Clashes — every two mountains that sit exactly opposite (180 degrees apart = 12 mountains apart) form a Six Clash pair. There are 12 clash pairs: Zi-Wu clash, Gui-Ding clash, Chou-Wei clash, Gen-Kun clash, Yin-Shen clash, Jia-Geng clash, Mao-You clash, Yi-Xin clash, Chen-Xu clash, Xun-Qian clash, Si-Hai clash, Bing-Ren clash. What Six Clashes mean in practice: clash means violent opposition and mutual rejection between two energies. Sitting and facing are themselves a clash pair — the sitting and facing of any house are always in clash. But this is structural and not a problem in itself (sitting-facing clash is built into the definition of a house — it's a zheng chong, a proper clash). A real clash problem is when two things that shouldn't clash do. Examples: a kitchen (Fire) on Zi mountain (Water) — Fire and Water clash directly in the same location. The facing of your front door falls on Wu mountain, and the facing of your neighbor's front door also falls on Wu mountain — two doors directly opposite, same facing, two streams of Qi rushing at each other. A bed in a bedroom on Mao mountain, and the toilet also on Mao mountain — waste Qi crashing into clean Qi. How to resolve Six Clashes: ① Place a physical barrier between the two clashing points — a screen, a wall, a large plant. ② Use harmony to dissolve clash. Example: Zi-Wu clash — use Chou to harmonize Zi (Zi-Chou form an Earthly Branch union), weakening Zi's attack on Wu. ③ Relocate one of the clashing elements. If you can move the bed from Mao mountain to Yi mountain, the Mao-You clash dissolves. A key rule: harmony can dissolve clash; clash can break harmony. If two mountains have a Three Harmony relationship, their Six Clash tension is partially neutralized by the harmony force. Example: Shen and Yin are a Six Clash pair. But Shen belongs to the Shen-Zi-Chen Water Three Harmony. If Zi and Chen are both favorable in the chart, the Shen-Yin clash loses much of its destructive power.

5. Matching Your Life Trigram to the 24 Mountains — Direction Is Not Absolute

The same sitting-facing house can be lucky for one person and unlucky for another. Why? Because every person has a life trigram, and the relationship between your life trigram's Five Element and the mountain's Five Element determines whether the house supports you or drains you. What is a life trigram? It's the Eight Trigrams category you belong to, calculated from your birth year. Your life trigram represents your fundamental energy type. Life trigram calculation (Eight Mansions system): Take the last two digits of your birth year (use the Chinese calendar year — if you were born before the Start of Spring, around February 4-5, count the previous year). Add those two digits together. If the result is two digits, add again. Continue until you get a single digit from 1 to 9. Male: subtract this single digit from 11. Female: add 4 to this single digit. If the result exceeds 9, subtract 9. If the result is 5: male converts to Kun trigram (2); female converts to Gen trigram (8). Mapping: 1 = Kan. 2 = Kun. 3 = Zhen. 4 = Xun. 6 = Qian. 7 = Dui. 8 = Gen. 9 = Li. Two camps: East Four Life — Zhen (3), Xun (4), Kan (1), Li (9). West Four Life — Qian (6), Kun (2), Gen (8), Dui (7). Life trigram Five Elements: Kan = Water. Kun = Earth. Zhen = Wood. Xun = Wood. Qian = Metal. Dui = Metal. Gen = Earth. Li = Fire. Matching logic: compare your life trigram's Five Element with the Five Element of the house's sitting mountain. The principle: life trigram is the host, sitting mountain is the guest. Sitting mountain creates life trigram = lucky (the house nourishes you). Sitting mountain matches life trigram = neutral-stable. Life trigram creates sitting mountain = you drain yourself to feed the house (tiring but not unlucky). Sitting mountain controls life trigram = unlucky (the house drains you). Life trigram controls sitting mountain = you overpower the house (uncomfortable despite being on top). The Eight Mansions school simplifies further: East Four Life people suit East Four houses (houses sitting on Zhen, Xun, Kan, or Li trigram mountains). West Four Life people suit West Four houses (houses sitting on Qian, Kun, Gen, or Dui trigram mountains). How the Eight Trigrams absorb the 24 Mountains: sitting on Kan trigram's three mountains (Ren, Zi, Gui) = Kan house. Sitting on Gen's three mountains (Chou, Gen, Yin) = Gen house. Sitting on Zhen's three mountains (Jia, Mao, Yi) = Zhen house. Sitting on Xun's three mountains (Chen, Xun, Si) = Xun house. Sitting on Li's three mountains (Bing, Wu, Ding) = Li house. Sitting on Kun's three mountains (Wei, Kun, Shen) = Kun house. Sitting on Dui's three mountains (Geng, You, Xin) = Dui house. Sitting on Qian's three mountains (Xu, Qian, Hai) = Qian house. Life-house match: East Four Life + East Four House = match (lucky). West Four Life + West Four House = match (lucky). East Four Life + West Four House = mismatch (needs adjustment). West Four Life + East Four House = mismatch (needs adjustment). What if life and house don't match? The Eight Mansions fix: adjust through the door. Your life trigram is fixed (you can't change your birth year). The house's sitting is fixed (you can't rotate the building). But the door — the Qi inlet — can be adjusted. If you live in a mismatched house, adjust the main door, master bedroom door, or kitchen door to face a direction that suits your life trigram. The logic: the house's sitting is its body (unchangeable). The house's door is its function (partially adjustable). The door's direction is the interface through which your life trigram connects to the house. Get the interface right, and even if the overall sitting-facing doesn't match, the house's negative impact on you drops significantly.

Multi-Dimensional Breakdown

Career & Wealth

The core career-and-wealth application of the 24 Mountains is sitting-facing de wei — whether your office or company's sitting-facing falls on a prosperous mountain-facing pair. In the Flying Star system, each 20-year period has its own set of prosperous sitting-facing combinations. When your building's sitting-facing lands on a prosperous pair, you get prosperous people and prosperous wealth. When it lands on a depleted pair, you lose both. The current Period 8 (2004-2023) prosperous pairs are: Chou-Wei, Wei-Chou, Si-Hai, Hai-Si, Xun-Qian, Qian-Xun (six pairs total). Period 9 (2024-2043) has different prosperous pairs — Bing-Ren, Wu-Zi, and others take over. This means the same house that thrived financially in Period 8 could see its fortunes slide in Period 9 without adjustments. The wealth position in the 24 Mountains — different Compass School branches locate the wealth position on different mountains. Eight Mansions says the sheng qi (life-giving energy) direction (calculated from the door) is the wealth position. Flying Stars says the current prosperous star (in Period 9, the 9-Purple star) landing on which 24 Mountains sector is the wealth position. Three Harmonies says the mountains related to the Water Three Harmony groups, combined with external water features, mark the wealth position. The core insight: wealth is not a fixed value locked to a specific mountain. It is the dynamic result of four variables: your life trigram + the house's sitting-facing + the external environment + the time period. The 24 Mountains give you the precise spatial grid. What you draw on that grid depends on the other theories.

Love & Relationship

In the 24 Mountains, the four peach blossom mountains are Zi, Wu, Mao, and You — the four cardinal peaks. They are also called the four xian chi (pond of indulgence) positions. These four mountains carry pure, concentrated relationship energy. Zi mountain (due north) peach blossom = Water nature. Attracts clever, flexible partners — intellectuals, quick thinkers. Wu mountain (due south) peach blossom = Fire nature. Attracts passionate, attractive partners — but with risk of excessive romantic attention that brings drama. Mao mountain (due east) peach blossom = Wood nature. Attracts gentle, cultured partners — refined but possibly indecisive. You mountain (due west) peach blossom = Metal nature. Attracts refined, selective partners — high standards, but demanding of their other half. If your bedroom or front door falls on one of these four peach blossom mountains, your romantic luck gets a significant boost. Single people can use this: place fresh flowers or pink decor on the peach blossom mountain to activate it further. Married people should be careful: if the peach blossom mountain is too activated (too much red, too many mirrors), it can stir up unwanted romantic attention that threatens the primary relationship. The Six Clashes in the 24 Mountains matter for relationship readings. If a husband and wife each use rooms that sit on clashing mountains (e.g., husband's study sits on Zi mountain, wife's study sits on Wu mountain), this suggests an invisible directional conflict in their life priorities. They may drift toward parallel lives with little overlap.

Personality

The 24 Mountains reflect personality tendencies indirectly, through life trigram and sitting direction. While not as precise as Ba Zi day-master analysis, the 24 Mountains provide a framework for understanding how environmental Qi and personality resonate. Life trigram and personality: Kan life (1) — Water type: flexible, clever, adaptable, but can drift without clear direction. Kun life (2) — Earth (yin) type:包容, patient, steady, but can be too passive. Zhen life (3) — Wood (yang) type: action-oriented, pioneering, driven, but can be impatient and burn out fast. Xun life (4) — Wood (yin) type: communicative, diplomatic, skillful, but can waver and lack firm positions. Qian life (6) — Metal (yang) type: leadership, decisiveness, strong sense of justice, but can be stubborn and inflexible. Dui life (7) — Metal (yin) type: eloquent, refined, high-quality social circle, but can be picky and hold grudges. Gen life (8) — Earth (yang) type: reliable, persistent, good at preserving, but conservative and slow to adapt. Li life (9) — Fire type: warm, magnetic, open-hearted, but emotionally volatile and concerned with appearances. Sitting mountain also shapes personality. Long-term residence in a house sitting on Zi mountain (Water, inward energy) makes people more introverted and cautious. Long-term residence sitting on Wu mountain (Fire, outward energy) makes people more outgoing and expressive. This effect is especially visible in children — a child who spends years sleeping in a bedroom on a strongly yin mountain (Zi, You) may become quieter; moving them to a yang mountain (Wu, Yin) can shift their temperament. If your child is too timid, consider a bedroom on a yang-heavy 24 Mountains direction. If too impulsive, try a yin-heavy direction.

Health

The core health connection of the 24 Mountains runs through the Eight Trigrams' correspondence to the human body. In the Later Heaven arrangement, each trigram maps to specific organs and a specific family member. Every trigram covers three mountains. Kan trigram (Ren, Zi, Gui) — kidneys, urinary system, ears. Represents the middle son. A space in the Kan zone that's chronically damp can lead to lower back weakness and hearing issues. Li trigram (Bing, Wu, Ding) — heart, eyes, small intestine. Represents the middle daughter. A Li zone that's too hot or too red can cause heart fire rising and insomnia. Zhen trigram (Jia, Mao, Yi) — liver, gallbladder, tendons and bones. Represents the eldest son. A Zhen zone crushed under heavy furniture can cause back pain and liver Qi stagnation. Dui trigram (Geng, You, Xin) — lungs, throat, skin. Represents the youngest daughter. A Dui zone that's too dry can cause respiratory sensitivity and dry skin. Qian trigram (Xu, Qian, Hai) — head, large intestine. Represents the father. A missing or damaged Qian corner hits the male household head's head health (headaches, memory) the hardest. Kun trigram (Wei, Kun, Shen) — stomach, spleen, abdomen. Represents the mother. A damp or cluttered Kun zone takes a long-term toll on the female household head's digestion. Gen trigram (Chou, Gen, Yin) — hands, stomach. Represents the youngest son. Xun trigram (Chen, Xun, Si) — hips/thighs, liver, gallbladder. Represents the eldest daughter. Practical health self-check using the 24 Mountains: take your compass and find the 24 Mountains ranges that correspond to the eight trigram zones in your home. Observe the actual condition of each zone — is it clean and bright, or dark and piled with clutter? Which zone has damage, dampness, or form afflictions (sharp corners pointing at it, overhead beams)? The organ system and family member corresponding to that zone are the weakest link in your household's health. This is not a prediction. It's an early screening of environmental health risk factors.

Classical Sources

Practical Action Steps

One Week to 24 Mountains Directional Intuition — Field Walking Plus Rapid-Fire Drills : Days 1-2: Memorize the full clockwise sequence until you can recite it without thinking. Use the chant: Zi Gui Chou Gen Yin Jia Mao, Yi Chen Xun Si Bing Wu Ding, Wei Kun Shen Geng You Xin Xu, Qian Hai Ren. Recite it 20 times every morning and evening. At the same time, draw a 24 Mountains chart and label every mountain's Five Element. Days 3-4: Go outside. Walk to 8 different spots in your neighborhood with your phone compass or feng shui compass. At each spot, read what mountain you're facing and what mountain is at your back. Say each mountain's Five Element out loud. Example: stand at your neighborhood gate looking out — facing reads Wu mountain = Fire, your back is Zi mountain = Water. Days 5-6: Rapid-fire drills. Have a friend call out random mountain names. Within three seconds, you answer: its Five Element, its opposite mountain (clash), and which two other mountains form its Three Harmony group. Example: Mao — Wood, clashes with You, Hai-Mao-Wei Wood Three Harmony. Day 7: Take your home's floor plan. Mark the eight trigram zones (Kan: Ren-Zi-Gui / Gen: Chou-Gen-Yin / Zhen: Jia-Mao-Yi / Xun: Chen-Xun-Si / Li: Bing-Wu-Ding / Kun: Wei-Kun-Shen / Dui: Geng-You-Xin / Qian: Xu-Qian-Hai). See which room falls in which trigram zone. After one week, the 24 Mountains will shift from a chart you look up to a spatial intuition in your brain.
Life Trigram Self-Test — Three Steps to Find Your Trigram and Your Lucky Directions : Step 1: Confirm your birth year by the Chinese calendar (the year starts at Start of Spring, around Feb 4-5. If you were born before that date, use the previous year). Step 2: Take the last two digits of the year. Example: 1987 → 87. 8+7=15. 1+5=6. If the sum is still two digits, add again until you get a single digit. Step 3: Male: 11 minus that single digit. Female: that single digit plus 4. If result > 9, subtract 9. If result = 5: male → Kun (2), female → Gen (8). Example: 1987 male → 8+7=15 → 1+5=6 → 11-6=5 → Kun life (West Four Life). 1987 female → 6+4=10 → 10-9=1 → Kan life (East Four Life). Once you have your life trigram, find your matching 24 Mountains directions. East Four Life (Zhen, Xun, Kan, Li) → look for houses sitting on Zhen's three mountains (Jia-Mao-Yi), Xun's three (Chen-Xun-Si), Kan's three (Ren-Zi-Gui), or Li's three (Bing-Wu-Ding). West Four Life (Qian, Kun, Gen, Dui) → look for houses sitting on Qian's three (Xu-Qian-Hai), Kun's three (Wei-Kun-Shen), Gen's three (Chou-Gen-Yin), or Dui's three (Geng-You-Xin). If you already live in a mismatched house, memorize your four lucky directions (sheng qi, tian yi, yan nian, fu wei). Position your bed, desk, or favorite chair in one of these four directions. This partially offsets the life-house mismatch.

Common Questions

Q: How big is the gap between a phone compass and a real feng shui compass? Can I just use my phone compass and apply the 24 Mountains directly?

A phone compass is typically 2-5 degrees less precise than a feng shui compass. Since each of the 24 Mountains spans only 15 degrees, in the worst case a phone compass can misread you into the neighboring mountain. For casual self-study — checking your own home out of curiosity — the phone compass is enough. You only need to know roughly which mountain your home sits on. A 2-3 degree error won't flip the judgment to its opposite. But for professional readings or fine-tuned layouts (Flying Stars practitioners care about 1-2 degree differences), a phone compass won't cut it. The phone compass has another fatal weakness: extreme sensitivity to metal and electromagnetic interference. Do you have a magnetic phone mount on your case? NFC enabled? Are you standing near rebar-reinforced concrete, an elevator shaft, or power lines? Any of these can throw your phone compass off by 10 degrees or more. As an alternative, buy an entry-level physical feng shui compass. Solid models exist in the $30-80 range. If you must use your phone compass: measure outside the building at three different spots and average the results. Cross-validate against the sun's actual position (morning sun = east, noon = south, evening = west) to sanity-check whether your compass is roughly correct.

Q: Does sun-arrives-at-mountain actually matter? Do I really need to move in when the sun is at my sitting or facing mountain?

Sun-arrives-at-mountain is a bonus, not a requirement. Having it helps. Not having it doesn't block you. The logic: the sun represents yang energy. The period when the sun arrives at a given mountain is when that direction's yang energy peaks. If you start construction, renovate, or move in during that window, the peak yang energy gives the whole process a tailwind. It's like catching a ride — you save effort if you catch it, but you can still walk if you miss it. However, if your house already has serious structural feng shui problems (through-draft, fire-burning-heaven's-gate, depleted sitting-facing), picking a sun-arrives-at-mountain date won't fix any of them. It's just a good-date bandage on a bad environment. Recommended priority: ① First make sure the house has no serious feng shui defects. ② After the defects are handled, ③ pick a sun-arrives-at-sitting or sun-arrives-at-facing day for moving in, as the cherry on top. Sun-arrives-at-facing is more important than sun-arrives-at-sitting for move-in. When you move into a house, Qi enters through the facing (the front). Sun at the facing means the house's Qi intake is bathed in the strongest yang light — an excellent start.