Hexagram 18 蠱 changing to hexagram 41 損
Changing lines (counted from the bottom): 1, 3.
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 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.
Hexagram 18 蠱, line 1
幹父之蠱，有子考，无咎，厲終吉。
The first line, divided, shows (a son) dealing with the troubles caused by his father. If he be an (able) son, the father will escape the blame of having erred. The position is perilous, but there will be good fortune in the end.
The two hexagrams
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.
Hexagram 41 損 — judgment
有孚，元吉。无咎，可貞，利有攸往。曷之用？二簋可用享。
In (what is denoted by) Sun, if there be sincerity (in him who employs it), there will be great good fortune:—freedom from error; firmness and correctness that can be maintained; and advantage in every movement that shall be made. In what shall this (sincerity in the exercise of Sun) be employed? (Even) in sacrifice two baskets of grain, (though there be nothing else), may be presented.
The changing lines of hexagram 18
| Line | Chinese | Legge |
|---|---|---|
| 1 | 幹父之蠱，有子考，无咎，厲終吉。 | The first line, divided, shows (a son) dealing with the troubles caused by his father. If he be an (able) son, the father will escape the blame of having erred. The position is perilous, but there will be good fortune in the end. |
| 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. |
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.