Hexagram 49 革 changing to hexagram 18 蠱
Changing lines (counted from the bottom): 1, 2, 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 18 蠱, line 3
幹父之蠱，小有悔，无大咎。
The third line, undivided, shows (a son) dealing with the troubles caused by his father. There may be some small occasion for repentance, but there will not be any great 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 18 蠱 — judgment
元亨。利涉大川。先甲三日，後甲三日。
Kû indicates great progress and success (to him who deals properly with the condition represented by it). There will be advantage in (efforts like that of) crossing the great stream. (He should weigh well, however, the events of) three days before the turning point, and those (to be done) three days after it.
The changing lines of hexagram 49
| Line | Chinese | Legge |
|---|---|---|
| 1 | 鞏用黃牛之革。 | The first line, undivided, shows its subject (as if he were) bound with the skin of a yellow ox. |
| 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. |
| 5 | 大人虎變，未占有孚。 | The fifth line, undivided, shows the great man (producing his changes) as the tiger (does when he) changes (his stripes). Before he divines (and proceeds to action), faith has been reposed in him. |
| 6 | 君子豹變，小人革面，征凶，居貞吉。 | The sixth line, divided, shows the superior man producing his changes as the leopard (does when he) changes (his spots), while small men change their faces (and show their obedience). To go forward (now) would lead to evil, but there will be good fortune in abiding firm and correct. |
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.