Yin, yang, and moving lines

In the traditional three-coin method, 6 is old yin, 7 young yang, 8 young yin, and 9 old yang. Old yin and old yang are moving lines that change polarity in the changed hexagram; young yin and young yang remain stable.

Ordinary users do not need to memorize the numbers. An interface can record the yin or yang face of each coin and calculate both polarity and movement, while explaining the rule clearly enough for the result to be checked.

No. Yin may receive, contain, cooperate, or create space; yang may initiate, advance, take responsibility, or exert force. Whether either is fitting depends on its position and whether the moment calls for action or restraint.

Receptive yin is not weak when listening is needed, and passive retreat can be misplaced when a decision is required. “Yang is good and yin is bad” is not a substitute for judging role and timing.

No moving lines means that this six-line result does not mark a specific transition point. The emphasis falls on the primary hexagram as a whole and on the relationship between upper and lower trigrams. It does not mean the situation can never change.

Ask what conditions are maintaining the present structure and which real condition would have to move before change becomes possible. Do not cast again merely to obtain a changed figure.

Begin with the primary hexagram to understand the whole situation, then treat the single moving line as the focus of change. Its text must be read within its position, relationships, and the concrete question, not extracted as an isolated judgment.

Then examine the changed hexagram to see how that local shift may alter the whole. The order is present structure, changing position, and possible new structure—not one quoted sentence alone.

Not necessarily. Multiple moving lines mean several factors are changing at once and the information is denser; movement itself is not the same as misfortune. The task is to distinguish changes that reinforce one another from those that conflict, and to identify what you can influence.

Compare the primary and changed figures line by line, then locate the most important role or phase in the question. If priorities cannot yet be established, acknowledge that the situation is unstable, narrow the decision, or wait for new facts rather than forcing one answer.