Six-Clash and Six-Harmony Hexagram Types
Last updated 10/7/2026
This lesson identifies two closed branch structures. It does not equate Six-Harmony with good, Six-Clash with bad, or either pattern with a universal pace.
Fixed branch pairs
| Six Harmonies (六合) | Six Clashes (六冲) |
|---|---|
| Zi–Chou | Zi–Wu |
| Yin–Hai | Chou–Wei |
| Mao–Xu | Yin–Shen |
| Chen–You | Mao–You |
| Si–Shen | Chen–Xu |
| Wu–Wei | Si–Hai |
These are branch-pair facts under the checked sources. The interpretive meaning of a pair still depends on target relevance and the declared rule set.
UAYA whole-hexagram structural convention
After reproducing the primary hexagram’s six Na Jia branch rows, compare three lower/upper pairs:
- line 1 with line 4;
- line 2 with line 5;
- line 3 with line 6.
If all three are harmony pairs, record Six-Harmony course label. If all three are clash pairs, record Six-Clash course label. Otherwise record no whole-chart label. This closed three-pair test is an explicit UAYA course convention; it is not attributed to the received chapters.
Reproducible exercises
Example type: invented branch tables; no question or outcome.
| Lines 1–4 | Lines 2–5 | Lines 3–6 | Course classification |
|---|---|---|---|
| Zi–Chou | Yin–Hai | Mao–Xu | Six-Harmony course label |
| Zi–Wu | Chou–Wei | Yin–Shen | Six-Clash course label |
| Zi–Chou | Chou–Wei | Mao–Chen | no whole-chart label |
The third row is not “partly Six-Harmony.” It contains individual relations but fails the closed whole-hexagram test.
What the source does—and what this lesson excludes
The “Six Harmonies” and “Six Clashes” chapters discuss many question-dependent readings and changes from one hexagram type to another. Those passages do not license one universal equation such as:
- harmony = favorable or slow;
- clash = unfavorable or fast;
- changing from one pattern to the other = an automatic reversal.
Record the structural type first. Later judgment may retain it only when a source-bounded mechanism connects it to the selected target.
Trap and stopping condition
- Do not confuse one branch pair with a whole-hexagram type.
- Do not count pairs as a score.
- Do not infer speed, duration, stability, or direction from the pattern alone.
- Stop when the chart branches cannot be reproduced from the accepted Na Jia construction taught in the preceding act.
Source note
Received pair sets and question-dependent discussions: Zengshan Buyi, “Six Harmonies,” chapter 20, checked composite printed p. 32, and “Six Clashes,” chapter 22, printed p. 36. The closed whole-hexagram comparison above is a UAYA structural convention, not a rule attributed to those chapters.
Next, test whether a relevant support path is actually interrupted: When Combination Blocks Generation.