A moving line and its transformed line form one positional pair.

The primary-side row is the input that changes. The changed-side row is the derived row at the same bottom-up position. This course sometimes calls them “cause” and “effect” to preserve reading order, but that language does not claim that a chart causes or proves an external event.

Build the pair before interpreting it

For every moving position:

  1. Copy the primary branch, element, and Six Relative.
  2. Copy the transformed branch, element, and Six Relative at the same position.
  3. Record generation, control, same-element sequence, void, Month Breaker, and role change as separate facts.
  4. Apply a working dynamic only after the facts are visible.
  5. Keep the pair attached to its position. Do not make the transformed row a free second target.
PositionPrimary moving rowTransformed rowObservable relationInterpretation status

Documented mechanics: Case 00035

Example type: documented textual case and chart cross-check.

Case 00035 has Hexagram 3 changing to 19 at lines 2 and 5. At line 2:

  • primary row: Child / Yin Wood, moving;
  • transformed branch: Mao Wood;
  • same position: bottom-up line 2;
  • observable relation: Wood remains Wood, Yin changes to Mao;
  • course label: advancing transformation.

The checked text calls the Yin-to-Mao movement an advancing transformation. In the documented chart, the selected line reproduces that same branch pair.

This lesson does not turn the category name “advancing” into a weather fact or general outcome. It records only the branch pair and the named source rule.

What transformed lines do not authorize

  • They do not automatically replace the primary target.
  • They do not act as proof of what will happen outside the chart.
  • They do not automatically interact with every other chart row.
  • They do not erase the original moving line.

When another lesson uses a wider interaction rule, it must name the exact source or course convention that permits it.

Contrast exercise

Example type: learner exercise.

Pair three abstract branches:

Moving → transformedObservationDo not conclude yet
Yin Wood → Mao WoodSame element; named advance pairAn assured improvement
Zi Water → Chou EarthDifferent elements; branch combination also needs checkingAn assured bond
Zi Water → Wu FireDifferent elements; branch clash also needs checkingAn assured conflict

The exercise ends with chart facts. Later pages decide which working labels apply.

Trap and stopping condition

Do not write “the transformed line causes the result.” Write “the course reads the transformed row as the next state of this moving-row pair.”

Stop if line order or changed-hexagram construction is unresolved. Interpretation cannot repair a mispaired line.

Claim sources: Zengshan Buyi, “Moving and Changing,” checked composite printed pp. 20–21, and volume 2, “Advance and Retreat Spirits,” printed pp. 55–57. Case locator: volume 2, “Tianshi,” printed p. 90/PDF p. 91. “Cause/effect” is bounded here as a UAYA ordering model, not real-world causation.

Next, classify the pair while preserving source and course-convention boundaries: the Eight-Dynamics Checklist.