Hexagram 49 革 changing to hexagram 5 需
Changing lines (counted from the bottom): 2, 4.
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 49 革, line 4
悔亡，有孚改命，吉。
The fourth line, undivided, shows occasion for repentance disappearing (from its subject). Let him be believed in; and though he change (existing) ordinances, there will be good fortune.
Hexagram 49 革, line 2
已日乃革之，征吉，无咎。
The second line, divided, shows its subject making his changes after some time has passed. Action taken will be fortunate. There will be no error.
The two hexagrams
Hexagram 49 革 — judgment
已日乃孚，元亨。利貞。悔亡。
(What takes place as indicated by) Ko is believed in only after it has been accomplished. There will be great progress and success. Advantage will come from being firm and correct. (In that case) occasion for repentance will disappear.
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 49
| Line | Chinese | Legge |
|---|---|---|
| 2 | 已日乃革之，征吉，无咎。 | The second line, divided, shows its subject making his changes after some time has passed. Action taken will be fortunate. There will be no error. |
| 4 | 悔亡，有孚改命，吉。 | The fourth line, undivided, shows occasion for repentance disappearing (from its subject). Let him be believed in; and though he change (existing) ordinances, there will be good fortune. |
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.