Hexagram 16 豫 changing to hexagram 21 噬嗑
Changing lines (counted from the bottom): 1, 6.
What to read
Two changing lines: read both line texts of the original hexagram; the upper one is the main one. (Rule set out by Zhu Xi in the Yixue qimeng.)
Hexagram 16 豫, line 6
冥豫，成有渝，无咎。
The topmost line, divided, shows its subject with darkened mind devoted to the pleasure and satisfaction (of the time); but if he change his course even when (it may be considered as) completed, there will be no error.
Hexagram 16 豫, line 1
鳴豫，凶。
The first line, divided, shows its subject proclaiming his pleasure and satisfaction. There will be evil.
The two hexagrams
Hexagram 16 豫 — judgment
利建侯行師。
Yü indicates that, (in the state which it implies), feudal princes may be set up, and the hosts put in motion, with advantage.
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.
The changing lines of hexagram 16
| Line | Chinese | Legge |
|---|---|---|
| 1 | 鳴豫，凶。 | The first line, divided, shows its subject proclaiming his pleasure and satisfaction. There will be evil. |
| 6 | 冥豫，成有渝，无咎。 | The topmost line, divided, shows its subject with darkened mind devoted to the pleasure and satisfaction (of the time); but if he change his course even when (it may be considered as) completed, there will be no error. |
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.