Hexagram 21 噬嗑 changing to hexagram 7 師
Changing lines (counted from the bottom): 1, 2, 4, 6.
What to read
Four changing lines: read the two unchanged lines of the resulting hexagram; the lower one is the main one. (Rule set out by Zhu Xi in the Yixue qimeng.)
Hexagram 7 師, line 3
師或輿尸，凶。
The third line, divided, shows how the host may, possibly, have many inefficient leaders. There will be evil.
Hexagram 7 師, line 5
田有禽，利執言，无咎。長子帥師，弟子輿尸，貞凶。
The fifth line, divided, shows birds in the fields, which it will be advantageous to seize (and destroy). In that case there will be no error. If the oldest son leads the host, and younger men (idly occupy offices assigned to them), however firm and correct he may be, there will be evil.
The two hexagrams
Hexagram 21 噬嗑 — judgment
亨。利用獄。
Shih Ho indicates successful progress (in the condition of things which it supposes). It will be advantageous to use legal constraints.
Hexagram 7 師 — judgment
貞丈人吉，无咎。
Sze indicates how, in the case which it supposes, with firmness and correctness, and (a leader of) age and experience, there will be good fortune and no error.
The changing lines of hexagram 21
| Line | Chinese | Legge |
|---|---|---|
| 1 | 屨校滅趾，无咎。 | The first line, undivided, shows one with his feet in the stocks and deprived of his toes. There will be no error. |
| 2 | 噬膚滅鼻，无咎。 | The second line, divided, shows one biting through the soft flesh, and (going on to) bite off the nose. There will be no error. |
| 4 | 噬乾胏，得金矢，利艱貞，吉。 | The fourth line, undivided, shows one gnawing the flesh dried on the bone, and getting the pledges of money and arrows. It will be advantageous to him to realise the difficulty of his task and be firm,—in which case there will be good fortune. |
| 6 | 何校滅耳，凶。 | The sixth line, undivided, shows one wearing the cangue, and deprived of his ears. There will be evil. |
English: James Legge (1882), public domain. Chinese: Zhou Yi.
Data: English Wikisource (Public domain texts; transcription CC BY-SA 4.0); Chinese Wikisource (Public domain texts; transcription CC BY-SA 4.0). Retrieved 2026-10-22.