Chapter 03: Trigrams, Moving Lines, and Changing Hexagrams

After this chapter, readers should understand:

1. A hexagram in Meihua Yishu is not a single symbol. It is a structure formed by the upper trigram, lower trigram, line positions, and change.
2. The original hexagram represents the basic state of the current question.
3. The moving line represents the position where change occurs and is an important basis for identifying the turning point of the matter.
4. The changed hexagram represents the trend after change, but not an absolute result.
5. The mutual hexagram helps observe the internal process and hidden structure of the matter.
6. When judging a question, one should not look only at the hexagram name. The original hexagram, moving line, mutual hexagram, changed hexagram, and Body-Function relationship must be combined.
7. What Meihua Yishu truly cares about is the process of change, not a simple label of good or bad.

Many beginners receive a hexagram and immediately ask whether it is good or bad. This question is too simplistic.

In Meihua Yishu, a hexagram image is a structure, not a fixed answer.

At minimum, a hexagram includes the upper trigram, lower trigram, original hexagram, moving line, changed hexagram, mutual hexagram, Body and Function, five-element generation and control, and the correspondence to the real question.

Therefore, one cannot judge good or bad from the hexagram name alone. The same Gen image, for example, may indicate boundary and obstruction in a cooperation question, consolidation and holding the foundation in a study question, and distance or stagnation in a relationship question.

A hexagram of the Sixty-Four Hexagrams is formed by two trigrams. The upper three lines form the upper trigram, also called the outer trigram. The lower three lines form the lower trigram, also called the inner trigram.

At beginner level, the lower trigram can be understood as leaning toward the internal side, foundation, and self. The upper trigram leans toward the external side, object, and environment.

For example, when asking whether a cooperation can move forward, the lower trigram may show my side's conditions, while the upper trigram may show the partner and the external environment.

If the lower side is weak and the upper side is strong, my side may be passive. If the lower generates the upper, my side may invest more. If the upper generates the lower, external conditions may support my side.

The original hexagram is the initial hexagram after casting. It represents the basic state of the current question.

It answers: what situation is this matter in now?

For example, if the original hexagram has a Zhen image, it may suggest activation or sudden change. If it has a Gen image, it may suggest stagnation, boundary, or the need to stabilize the foundation first. If it has a Xun image, it often suggests communication, penetration, and gradual advancement. If it has a Kan image, it often suggests risk, uncertainty, or opaque information.

The original hexagram is not the final result. It is the starting point of judgment.

The moving line is a very important part. In a six-line hexagram, the line that changes is the moving line.

The moving line represents the change point, trigger point, most active position, and turning position of the matter.

If the original hexagram is the current state, then the moving line is the place within that current state where change is happening.

The six lines are arranged from bottom to top: first line (beginning / root), second line (internal stability / foundation forming), third line (between advance and retreat / internal-external turning point), fourth line (entering the external environment), fifth line (core ruling position), and upper line (endpoint / extreme / transformation).

First line moving: often seen at an early stage. The foundation is not stable, so urgent pushing is not suitable.

Second line moving: often shows changes in internal conditions. The foundation is gradually forming, and rhythm should be stabilized.

Third line moving: often shows pressure between advance and retreat. It is easy to rush forward, so carrying capacity must be assessed.

Fourth line moving: often shows external environment entering the matter. The other party's attitude or rules may become key.

Fifth line moving: often shows change in the core person or core decision. The direction begins to become clear.

Upper line moving: often shows the end of a stage, an extreme point, or transformation. Continuing to force the matter is usually not suitable.

When the moving line changes, it forms the changed hexagram. The changed hexagram answers: if the current change continues, what state may the matter move toward?

The changed hexagram is a trend prompt, not an absolute command. Human action and external conditions can still affect the result.

The mutual hexagram is formed by reorganizing the middle four lines of the original hexagram. It is often used to observe the middle process, hidden structure, and internal contradictions.

The original hexagram reads the present, the mutual hexagram reads the process, and the changed hexagram reads the trend. In complex questions, the mutual hexagram is highly valuable.

A recommended question chain is: What is the current state? That is the original hexagram. What internal issue exists in the middle? That is the mutual hexagram. Where may the matter develop afterward? That is the changed hexagram.

Then combine the moving line and Body-Function relationship to turn judgment into executable strategy.

The hexagram name is an entry point, not the endpoint. For example, Tai does not mean forever smooth, Pi does not mean forever bad, and Wei Ji does not mean failure.

Judgment must combine the upper and lower trigrams, moving line, changed hexagram, mutual hexagram, Body and Function, generation-control relationships, and question background.

The same hexagram can have completely different meanings when different lines move.

The hexagram name provides the overall context, while the moving line provides the specific change point. In practice, the moving line often makes action suggestions more concrete.

The changed hexagram should be understood as the trend state under the current path, not as a verdict of fate.

A mature reading should output later risks, adjustment strategies, and conditions for advancement, rather than absolute statements.

The same hexagram image has different meanings in different questions. For example, Kan in an investment question may indicate risk; in a study question, it may indicate depth; in a relationship question, it may indicate emotional depth and unclear information.

Therefore, one must first map the question, then explain the image.

Example chain: the original hexagram has a Xun image, the third line moves, and the changed hexagram shows Gen.

This can be read as: the current situation requires communication and gradual penetration; pressure and turning occur in the middle; later, boundaries and stagnation may appear.

Action suggestion: clarify responsibilities, fees, timeline, and exit mechanism before moving forward.

Example chain: the original hexagram shows Dui, the second line moves, and the changed hexagram shows Kan.

This can be read as: communication is the current theme; internal attitude is changing clearly; later, emotional instability or hidden information may appear.

Action suggestion: gentle contact is possible, but do not force an answer. Observe the rhythm of real feedback.

Example chain: the original hexagram shows Zhen, the mutual hexagram shows Kan, and the changed hexagram shows Li.

This can be read as: there is current demand and opportunity for change; uncertainty and risk exist in the process; the later path leans toward expression and visibility.

Action suggestion: first fill information gaps and prepare the transition, then choose the moment to shift direction.

1. A hexagram image is a structure, not a label.
2. The original hexagram reads the present, the mutual hexagram reads the process, and the changed hexagram reads the trend.
3. The moving line is the focus of change and is often more specific than the hexagram name.
4. The changed hexagram is a trend prompt, not an absolute future.
5. The hexagram image must correspond to the real question.

1. Which is more important, the original hexagram or the changed hexagram? Both are important: one reads the present, the other reads the trend.
2. Must the mutual hexagram be read? For complex questions, it is recommended, because it supplements the internal process.
3. Does the moving line mean change is certain? It indicates the change point, but results are still affected by conditions and action.
4. Is the changed hexagram the final result? No. It mainly gives a trend prompt.
5. Why can't we look only at the hexagram name? Because without the moving line, Body and Function, and question context, the reading becomes distorted.
6. If the original hexagram is good but the changed hexagram is poor, does it mean first good then bad? It may mean the current conditions are usable but later risks exist. The moving line, mutual hexagram, Body and Function, and question background must be used to manage later change.

The glossary for this chapter is provided below.

1. Why is a hexagram image not a fixed answer?
2. How do the upper and lower trigrams usually divide roles in question mapping?
3. What do the original, mutual, and changed hexagrams each answer?
4. What role does the moving line play in judgment?
5. Why should the changed hexagram not be absolutized?
6. How can a hexagram image be translated into practical action suggestions?

Next chapter: Chapter 04, Body and Function. It enters the core judgment of subject-object relationships.