Hexagram 21 噬嗑 changing to hexagram 5 需
Changing lines (counted from the bottom): 2, 3, 4, 5, 6.
What to read
Five changing lines: read the one unchanged line of the resulting hexagram. (Rule set out by Zhu Xi in the Yixue qimeng.)
Hexagram 5 需, line 1
需于郊，利用恆，无咎。
The first line, undivided, shows its subject waiting in the distant border. It will be well for him constantly to maintain (the purpose thus shown), in which case there will be no error.
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 5 需 — judgment
有孚，光亨。貞吉，利涉大川。
Hsü intimates that, with the sincerity which is declared in it, there will be brilliant success. With firmness there will be good fortune; and it will be advantageous to cross the great stream.
The changing lines of hexagram 21
| Line | Chinese | Legge |
|---|---|---|
| 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. |
| 3 | 噬昔肉，遇毒；小吝，无咎。 | The third line, divided, shows one gnawing dried flesh, and meeting with what is disagreeable. There will be occasion for some small regret, but no (great) 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. |
| 5 | 噬乾肉，得黃金，貞厲，无咎。 | The fifth line, divided, shows one gnawing at dried flesh, and finding the yellow gold. Let him be firm and correct, realising the peril (of his position). There will be no error. |
| 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.