Hexagram 18 蠱 changing to hexagram 34 大壯
Changing lines (counted from the bottom): 1, 4, 6.
What to read
Three changing lines: read the judgments of the original and the resulting hexagram; the original is the main one. (Rule set out by Zhu Xi in the Yixue qimeng.)
Judgment of hexagram 18 蠱
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.
Judgment of hexagram 34 大壯
利貞。
Ta Kwang indicates that (under the conditions which it symbolises) it will be advantageous to be firm and correct.
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 34 大壯 — judgment
利貞。
Ta Kwang indicates that (under the conditions which it symbolises) it will be advantageous to be firm and correct.
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. |
| 4 | 裕父之蠱，往見吝。 | The fourth line, divided, shows (a son) viewing indulgently the troubles caused by his father. If he go forward, he will find cause to regret it. |
| 6 | 不事王侯，高尚其事。 | The sixth line, undivided, shows us one who does not serve either king or feudal lord, but in a lofty spirit prefers (to attend to) his own affairs. |
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.