Hexagram 21 噬嗑 changing to hexagram 8 比
Changing lines (counted from the bottom): 1, 4, 5, 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 8 比, line 2
比之自內，貞吉。
In the second line, divided, we see the movement towards union and attachment proceeding from the inward (mind). With firm correctness there will be good fortune.
Hexagram 8 比, line 3
比之匪人。
In the third line, divided, we see its subject seeking for union with such as ought not to be associated with.
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 8 比 — judgment
吉。原筮元永貞，无咎。不寧方來，後夫凶。
Pî indicates that (under the conditions which it supposes) there is good fortune. But let (the principal party intended in it) re-examine himself, (as if) by divination, whether his virtue be great, unintermitting, and firm. If it be so, there will be no error. Those who have not rest will then come to him; and with those who are (too) late in coming it will be ill.
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. |
| 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.