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Moving Lines and Transformed Hexagrams — The Complete Rules: Old Yang Becomes Yin, Old Yin Becomes Yang. From Original Hexagram to Transformed Hexagram Without a Single Mistake.

Old Yang 9 → Young Yin 8, Old Yin 6 → Young Yang 7 — the iron law of moving lines. Why Young Yang 7 and Young Yin 8 do not move. The original hexagram is the present. The transformed hexagram is the future. Zero moving lines = static hexagram. All six lines move = Qian becomes Kun. Full three-moving-line example: which lines changed, what the transformed hexagram is, how to interpret it.

Moving Lines and Transformed Hexagrams — How Your Original Hexagram Comes Alive

9 and 6 Decide Whether Your Hexagram Moves or Sits Dead

After the Dayan method builds six lines, you do not get a static hexagram. You get an original hexagram with moving lines and a transformed hexagram (also called the zhi gua). The transformed hexagram's root is 9 and 6: Old Yang 9 has reached the extreme and must become Young Yin 8. Old Yin 6 has reached the extreme and must become Young Yang 7. 7 and 8 are young — not yet at the age of change. They stay as they are. The core of these rules is one sentence: the old change. The young do not. Nine becomes eight. Six becomes seven. Master this and you master the deepest layer of I Ching divination. This article moves from single moving lines to all six lines moving, with a full three-moving-line example in between. Read it and you can derive any transformed hexagram yourself.

Remember two rules for moving lines: 9 → 8 (Old Yang becomes Young Yin — yang line becomes yin line). 6 → 7 (Old Yin becomes Young Yang — yin line becomes yang line). 7 does not move. 8 does not move. They are young. Their time has not come. The original hexagram is your current situation. The transformed hexagram is your future direction. The number of moving lines determines the scale of change: 0 moving lines = static hexagram (no change). 1–2 moving lines = most common (local change). 3–4 moving lines = major transformation. 5–6 moving lines = complete reversal.

Moving-Line Rules: Four Numbers. Two Move. Two Do Not.

Old Yang 9: the maximum value in the Dayan method. Yang has reached the extreme — no road forward. Must turn back. The turn goes toward yin. 9 → 6? No. 9 → 8 — Old Yang becomes Young Yin. Old Yang's 'old' means fullness must decline. The first step of decline is stable yin (Young Yin 8), not the deepest yin (Old Yin 6). Old Yin 6: the minimum value in the Dayan method. Yin has reached the extreme — no road downward. Must rebound. The rebound goes toward yang. 6 → 9? No. 6 → 7 — Old Yin becomes Young Yang. Old Yin's 'old' means extreme yin must return. The first step of return is stable yang (Young Yang 7). Young Yang 7: yang in its prime. Upward it can reach 9 (Old Yang). It can also stay at 7 — both paths open. Not yet at a forced fork. So it does not move. Young Yin 8: yin in its prime. Same as Young Yang — not that it cannot change. It has not reached the time to change. Memory trick: old pairs with young. Yang pairs with yin. Old Yang becomes Young Yin — old/young, yang/yin. Perfect parallel construction. Old Yin becomes Young Yang — same logic.

Why the Young Do Not Change — The Word 'Young' Explains Itself

Many people ask: why do 7 and 8 not change? The answer sits in the word 'young.' Young = not yet mature. Tell a twenty-year-old 'time to retire' — wrong. They are not there yet. Same logic: Young Yang 7 is only halfway on the yang path (from 7 to 9, there is room). Young Yin 8 is only halfway on the yin path (from 8 to 6, there is room). They are still traveling — not at the endpoint. No reason to change. Old = aged. Tell a sixty-year-old 'time to retire' — correct. Time has come. Old Yang 9 has reached yang's endpoint. Old Yin 6 has reached yin's endpoint. A person at the endpoint must change. Change allows continuation. Someone asks: then Young Yin 8, if it continues downward to 6, would change — right? Right — but not now. Young Yin 8 is on the yin path. From 8 to 6 takes two more steps. In this divination, it stays at 8 — it did not move further. Next divination, the same position may come out 6. But this time it does not. Divination is a snapshot. The snapshot captures the moment your foot lifts — between raising and landing. The snapshot tells you the state at this instant. It does not predict how far your next step will go.

The Original and Transformed Hexagram Relationship — Present Is the Original. Future Is the Transformed.

The original hexagram is the one you cast — the six lines' yin-yang directly map to your current situation. The transformed hexagram is what you get after converting all moving lines by the rules — it maps to your future direction. Four common scenarios for the original-transformed relationship: First: zero moving lines (all six are 7 and 8). The transformed hexagram is the same as the original — this is a static hexagram. Your situation will not undergo substantial change within the current time window. Reading method: focus on the original hexagram's Judgment, Commentary, and Great Image. Second: 1–2 moving lines (most common). Local change. One or two points in your situation are shifting. Pay attention to these moving lines' statements and positions. The transformed hexagram tells you the overall situation after change. Third: 3–4 moving lines. Larger change. Multiple domains turning simultaneously. Reading method: read the transformed hexagram's Judgment first (the overall situation has changed). Then check each moving line's position to confirm which specific areas are changing. Fourth: 5–6 moving lines (extremely rare). Complete reversal. All six lines moving means total replacement of old and new. Reading method: ignore the original hexagram. Read the transformed hexagram directly. Everything you have now will not survive. The transformed hexagram is your new coordinate.

The Most Extreme Case of All Six Lines Moving — Qian Becomes Kun and Kun Becomes Qian

Probability of all six lines moving: roughly 1/4096, about 0.02%. In the Dayan method, only two hexagrams can have all six lines moving: Qian Wei Tian ䷀ → Kun Wei Di ䷁: all six lines are 9 (Old Yang). ䷀: six ⚊ all become ⚋. Yang at its absolute extreme, total reversal into yin. If you draw this result — you stand at the tipping point from 'absolute initiative' to 'absolute receptivity.' You were Qian — charging ahead, making decisions, dominating the situation. Next, you become Kun — step back, support others, use stillness to master motion. This is not retreat. It is switching tracks. Kun Wei Di ䷁ → Qian Wei Tian ䷀: all six lines are 6 (Old Yin). ䷁: six ⚋ all become ⚊. Yin at its absolute extreme, total reversal into yang. If you draw this result — you shift from 'supporter' to 'leader.' You spent so long cooperating, quietly bearing, not competing. Next, you step forward. Outside of Qian and Kun, the other sixty-two hexagrams cannot have all six lines moving. Why? Because within the Dayan method, Old Yang 9 requires the specific remainder combination (5,4,4) and Old Yin 6 requires (9,8,8). For all six lines to hit these combinations — it can only happen when all six are the same nature, as in Qian (all yang) and Kun (all yin). Other hexagrams mix yin and yang — structurally impossible to simultaneously satisfy the all-moving condition.

Full Example: Three Moving Lines — From ䷐ Ze Lei Sui to ䷂ Shui Lei Zhun

Zhang San casts a hexagram. Six line results (from line 1 to line 6): Line 1: Remainder (9,8,8) Value 6 Old Yin ⚋ moving Line 2: Remainder (5,4,4) Value 9 Old Yang ⚊ moving Line 3: Remainder (5,8,8) Value 7 Young Yang ⚊ stable Line 4: Remainder (5,8,4) Value 8 Young Yin ⚋ stable Line 5: Remainder (9,8,8) Value 6 Old Yin ⚋ moving Line 6: Remainder (5,4,8) Value 8 Young Yin ⚋ stable Original hexagram bottom to top: ⚋⚊⚊⚋⚋⚋ Lower trigram (lines 1+2+3): ☳ Zhen / Thunder Upper trigram (lines 4+5+6): ☱ Dui / Lake Original hexagram: ䷐ Ze Lei Sui (Sui / Following) Three moving lines — Line 1, Line 2, Line 5: Line 1 Old Yin 6 → Young Yang 7: ⚋ → ⚊ Line 2 Old Yang 9 → Young Yin 8: ⚊ → ⚋ Line 5 Old Yin 6 → Young Yang 7: ⚋ → ⚊ Transformed hexagram bottom to top: ⚊⚋⚊⚋⚊⚋ Lower trigram (post-change lines 1+2+3): ☵ Kan / Water Upper trigram (post-change lines 4+5+6): ☳ Zhen / Thunder Transformed hexagram: ䷂ Shui Lei Zhun (Zhun / Difficulty at the Beginning) Interpretation points: Original hexagram Sui — your current situation is 'following.' You are not leading. You follow a trend or a person. Sui's Commentary says 'great indeed is the timeliness of following.' The wisdom of following at the right moment is a significant thing. Three moving line positions matter: Line 1 moves (the origin point is changing). Line 2 moves (your role position is changing). Line 5 moves (the top yang position is changing — the leadership spot is shaking). Transformed hexagram Zhun — the Zhun hexagram represents the moment heaven and earth first open and the ten thousand things begin to emerge. It corresponds to 'the beginning is very difficult.' The trajectory from Sui to Zhun: your current state of following (Sui) will soon end. Next, you face a new situation alone (Zhun). The start will be hard — but this is the necessary path from follower to pioneer.

Do You Really Understand Moving Lines and Transformed Hexagrams? Three Self-Test Standards

  • You can state the transformation rules for all four line states with your eyes closed. 9 → 8: Old Yang becomes Young Yin, ⚊ becomes ⚋. 6 → 7: Old Yin becomes Young Yang, ⚋ becomes ⚊. 7 does not move: Young Yang stays ⚊. 8 does not move: Young Yin stays ⚋. No reference needed. Fluent as a multiplication table.
  • Given any original hexagram and any set of moving lines, you can mentally derive the transformed hexagram in ten seconds. Example: original ䷐ Ze Lei Sui, lines 1 and 4 move — you immediately answer transformed ䷂ Shui Lei Zhun. This speed shows you have internalized the line-position-to-trigram mapping.
  • You can explain why Old Yin (6) becomes Young Yang (7) and Old Yang (9) becomes Young Yin (8). Yang at its extreme turns yin. Yin at its extreme turns yang. Things reverse at the extreme. Yang at its end = 9 = next step must descend = enter yin. Yin at its end = 6 = next step must rise = enter yang. 7 and 8 sit in the middle. Yang and yin each have room to continue. They have not reached the end — so they do not change. You use the two words 'old' and 'young' to explain the entire logic of change versus stasis.

Common Breakers

  • Treating a moving line's 'change' as the line disappearing. Old Yang 9 becomes Young Yin 8 — the line remains. Its yin-yang attribute changes. ⚊ becomes ⚋ — the drawing changes. The line position does not change. You do not delete a line and redraw. You change yang to yin at the same position. This distinction matters in interpretation: the moving line's position is exactly where the hexagram tells you 'the problem is here.' If you treat the moving line as gone — you lose the hexagram's core information.
  • Reading only the transformed hexagram after deriving it, ignoring the original. The transformed hexagram is the future — but the future grows from the present. Read the transformed hexagram alone and you see only results without causes. Correct method: first read the original hexagram's Judgment — understand the current state. Then read the moving lines' line statements — the hexagram tells you where change is happening. Finally read the transformed hexagram's Judgment — know the situation after change. Three keys. None is optional.
  • Thinking Young Yin 8 and Young Yang 7 will 'change eventually.' 7 and 8 do not change in this divination. They represent the stable, unchanging, persistent parts of your situation. This does not mean they never change — it means they do not change within this divination's time window. Next time, the same position may come out 9 or 6. But this time — 7 is 7. 8 is 8. Do not treat static lines as 'half-moving' and over-interpret them.

What the Number of Moving Lines Hints About Career, Relationships, Personality, and Health

Career & Wealth

The number of moving lines carries a very direct signal for career questions. 1 moving line: your career path has exactly one key variable in flux. Focus your energy on that single variable. 2 moving lines: two variables move simultaneously — usually one internal (your ability, willingness) and one external (opportunity, environment). Identify which is which. 3 moving lines: your career is undergoing structural change. Not a salary adjustment or role shift — this is industry switch, track change, role flip. If you draw a three-moving-line hexagram for a career question — prepare for a major turn within six to twelve months. 4–5 moving lines: extremely rare. Your current career framework likely will not survive. Start your Plan B. 6 moving lines: probability 0.02%. If you draw this — your career will become something entirely different from what it is now. Not necessarily bad. But definitely entirely different.

Love & Relationship

The moving-line count in a relationship hexagram reveals the intensity of change. 0 moving lines (static hexagram): the relationship is rock-steady. No breakup and no marriage in the near term — the current state persists. If you are unhappy with the status quo, the static hexagram tells you: no external change is coming soon. Change can only start from yourself. 1 moving line: one variable in the relationship is shifting. It may be how you communicate, geographical distance, a third party entering — the hexagram hints at where through the line's position. 2 moving lines: bidirectional change — you are changing and your partner is changing. These changes may align (growing together) or diverge (you grow, they do not — you drift apart). 3+ moving lines: the relationship is in intense turbulence. Do not make big decisions right now — no breakup, no marriage. Wait for the moving-line storm to pass. When Zhun ䷂ appears as the transformed hexagram, pay special attention — Zhun means difficulty at the beginning. A new relationship or a new phase inevitably brings hardship. Survive that hardest 0-to-1 stretch and you are in.

Personality

How many moving lines do you typically draw? Count your last ten divinations' moving-line average. This number reflects your personality change frequency. Average 0–1: you are a stability-type personality. Your life is dominated by habits, routines, and established tracks. Strength: steady. Others crash. You rarely do. Weakness: you may miss windows where change was needed but you did not move. Average 2–3: you are a change-type personality. Your life rhythm naturally includes more turning points. Every few years, you shift direction or role. You may feel exhausted — but compared to people averaging under 1, your tolerance for change is far higher. Average 4+: your life resembles a roller coaster. Frequent major reversals are not accidents — your personality naturally leans toward 'generating change.' You need to recognize: change is not your enemy. But you can choose the amplitude. Not every turn needs a total reversal. Sometimes going from 9 to 8 is enough — you do not need all six lines moving.

Health

Map the moving-line count to the body — this is a very practical self-monitoring framework. 0 moving lines: all body systems are stable. No intervention needed. 1 moving line: one system is signaling. Check the moving line's position — Line 1 corresponds to feet and calves. Line 2: knees and thighs. Line 3: waist and abdomen. Line 4: chest and back. Line 5: neck and shoulders. Line 6: head. After locating the position, combine with the line value (9 or 6) to judge: overuse (9) or suppression (6). 2–3 moving lines: multiple body systems are simultaneously turning. This may be seasonal change, sudden stress spikes, or a recent lifestyle shift. Rest. The body is not broken — it is adapting to a new rhythm. 4+ moving lines: the body is undergoing systemic remodeling — like recovering from a major illness, postpartum recovery, major surgery rehabilitation. The body at this stage is like the Qian hexagram with all lines moving — the old equilibrium is completely shattered. A new equilibrium is building.

Classical Discussions of Moving Lines and Transformed Hexagrams — From the Xici to Zhu Xi

After You Derive the Transformed Hexagram, How Do You Read It?

  • First Count the Moving Lines — Seven Cases, Seven Reading Methods: Spread out your casting record sheet. Scan the six numbers beside the six lines from top to bottom. Circle any 9 or 6. Count the circles. 0: read the original hexagram's Judgment + Commentary. 1: read that moving line's statement. Use the original hexagram's Judgment as supplement. 2: read both moving lines' statements. If they have a yin-yang resonance relationship (one yin, one yang at corresponding positions), focus on their interaction. 3: read the transformed hexagram's Judgment primarily. Original hexagram's Judgment as supplement. 4: same — read the transformed hexagram's Judgment primarily. But note: among the four moving lines, how many are 9 versus 6? More 9s = you are crashing while actively changing. More 6s = external forces are crashing you. 5: read the transformed hexagram's line statements primarily. The single stable line is the hexagram's anchor. 6: read only the transformed hexagram's Judgment. This check takes thirty seconds. It determines whether the twenty minutes of interpretation that follow point in the right direction.
  • Plot Moving Line Positions on a Time Axis — Line 1 Is the Past. Line 6 Is the Future.: Take a sheet of paper. Draw a horizontal line. Left end: 'Past.' Right end: 'Future.' Mark six points along the line matching the six lines — Line 1 at the far left (the matter's origin). Line 6 at the far right (the matter's endpoint). Circle your original hexagram's moving line positions in red. The positions tell you at what stage the key turn happens. Line 1 moving: change happened before the matter even started (your urge to switch jobs existed before you sent any résumés). Line 3 moving: change happens at the halfway point — a mid-course turn. Line 5 moving: change happens near the end — you thought it was the finale. It was the turn. If you have three moving lines spread across Lines 1, 3, and 6 — your entire matter changes from start to finish. No stable phase. If your three moving lines cluster at Lines 1, 2, 3 — change concentrates in the first half. The second half stabilizes. Draw this timeline. Your judgment of change rhythm becomes an order of magnitude more precise than reading hexagram statements alone.
  • The Transformed Hexagram Is Not the Endpoint — You Can Chase 'the Zhi Gua's Zhi Gua': If the transformed hexagram you derive itself feels like the starting point of a new situation — you can mentally treat the transformed hexagram as a new original hexagram and push one more step. Does the new transformed hexagram have Old Yang or Old Yin? Strictly speaking, you do not know the transformed hexagram's line values — they are derived from the original hexagram's moving lines (9 → 8, 6 → 7). The transformed hexagram by itself carries no value information (you only know each line is yin or yang. You do not know whether it is 7, 8, 9, or 6). But — if your reading carries an intuition of 'this is not over' — you may cast a separate new hexagram specifically for the future situation that the transformed hexagram represents. Do not forcibly extend within a single casting. That is misuse. The rule is clear: the hexagram you cast now governs only the window from now until your next divination. When the window closes and the situation changes — cast again. The Dayan method is not fortune-telling. It is a series of 'current-state snapshots with near-term direction.'

Common Confusion About Moving Lines and Transformed Hexagrams

Q:Old Yang 9 becomes Young Yin 8 — why not jump directly to Old Yin 6? Would that not be a more complete change?

A:

Because change is gradual, not a jump. 9 to 8 is one step — from yang's peak down to yin's starting point (Young Yin is yin's shallowest layer). 9 jumping straight to 6 — that skips two intermediate states: Young Yin 8 and Young Yang 7. Nature has no teleportation — the hottest summer day does not jump to the coldest winter day. Autumn stands between them. Same logic: Old Yin 6 becomes Young Yang 7 — from yin's peak up to yang's starting point (Young Yang is yang's shallowest layer). 6 to 9 also skips 7 and 8. Divination's change simulates nature's rhythm — one step at a time.

Q:Why does Young Yang start at 7 and not 1? Three, four, five, six, seven, eight, nine — why not one and two?

A:

Because the Dayan method's value range is naturally 6 through 9. The root is the minimum and maximum three-change remainder sums: minimum sum 5+4+4=13, remaining 36, ÷4=9. Maximum sum 9+8+8=25, remaining 24, ÷4=6. So only four values exist — 6, 7, 8, 9. 1 through 5 do not appear. This is determined by algorithm structure, not arbitrarily chosen by the ancients. The numbers 6, 7, 8, 9 also correspond to the Five Elements' generating numbers in the Shangshu · Hongfan: 6 = water, 7 = fire, 8 = wood, 9 = metal. One element is missing — earth occupies the center position, represented by 5. 5 does not appear in the casting value range, confirming the philosophy that 'the center element rests without use.'

Q:Three 9s and three 6s in a hexagram — yang moving lines and yin moving lines are exactly half each. How do I interpret this?

A:

Three Old Yang 9s moving and three Old Yin 6s moving — all six lines move. Your situation contains equal parts active change (9, self-initiated) and passive change (6, externally forced). You simultaneously push some things and are pushed by some things. As stated earlier: for an all-moving hexagram, ignore the original, read the transformed. But note the positional distribution of 9s and 6s: if all three 9s sit in the lower trigram (Lines 1,2,3) — your inner self is undergoing a full, self-driven overhaul. If all three 6s sit in the upper trigram (Lines 4,5,6) — the external environment forces your reversal. Internal initiative plus external pressure = dual pincer. In this case, the transformed hexagram's Judgment is your only guide. You cannot control it even if you want to. Follow the transformed hexagram's direction.

Q:Is there a 'transition state' between the original and transformed hexagrams? Can I see the intermediate process between them?

A:

Yes. The mutual hexagram (hu gua) is the transition state. The mutual hexagram extracts the middle lines of the original: take Lines 2, 3, 4 as the lower trigram and Lines 3, 4, 5 as the upper trigram. Using the ䷐ → ䷂ example above: original ䷐ Ze Lei Sui. Lines 2-3-4 = ⚊⚊⚋ (☶ Gen). Lines 3-4-5 = ⚊⚋⚋ (☳ Zhen). Mutual hexagram = ䷽ Lei Shan Xiao Guo. The mutual hexagram is the intermediate state between now and the future. Going from 'Following' (Sui) to 'Difficulty at the Beginning' (Zhun), you pass through a 'Minor Excess' (Xiao Guo) stage — small overstepping, adjustment, course correction. If your transformed hexagram represents the distant future (e.g., one year out), the mutual hexagram corresponds to mid-term (three to six months). Reading the mutual hexagram helps you identify what you will experience along the path from A to B.

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