Hexagram 27 頤 changing to hexagram 29 坎
Changing lines (counted from the bottom): 1, 2, 5, 6.
What to read
Four changing lines: read the two unchanged lines of the resulting hexagram; the lower one is the main one. (Rule set out by Zhu Xi in the Yixue qimeng.)
Hexagram 29 坎, line 3
來之坎坎，險且枕，入于坎窞，勿用。
The third line, divided, shows its subject, whether he comes or goes (=descends or ascends), confronted by a defile. All is peril to him and unrest. (His endeavours) will lead him into the cavern of the pit. There should be no action (in such a case).
Hexagram 29 坎, line 4
尊酒簋，貳用缶。内約自牖，終无咎。
The fourth line, divided, shows its subject (at a feast), with (simply) a bottle of spirits, and a subsidiary basket of rice, while (the cups and bowls) are (only) of earthenware. He introduces his important lessons (as his ruler's) intelligence admits. There will in the end be no error.
The two hexagrams
Hexagram 27 頤 — judgment
貞吉。觀頤，自求口實。
Î indicates that with firm correctness there will be good fortune (in what is denoted by it). We must look at what we are seeking to nourish, and by the exercise of our thoughts seek for the proper aliment.
Hexagram 29 坎 — judgment
習坎：有孚，維心亨。行有尚。
Khan, here repeated, shows the possession of sincerity, through which the mind is. penetrating. Action (in accordance with this) will be of high value.
The changing lines of hexagram 27
| Line | Chinese | Legge |
|---|---|---|
| 1 | 舍爾靈龜，觀我朵頤，凶。 | The first line, undivided, (seems to be thus addressed), 'You leave your efficacious tortoise, and look at me till your lower jaw hangs down.' There will be evil. |
| 2 | 顛頤，拂經，于丘頤，征凶。 | The second line, divided, shows one looking downwards for nourishment, which is contrary to what is proper; or seeking it from the height (above), advance towards which will lead to evil. |
| 5 | 拂經，居貞吉，不可涉大川。 | The fifth line, divided, shows one acting contrary to what is regular and proper; but if he abide in firmness, there will be good fortune. He should not, (however, try to) cross the great stream. |
| 6 | 由頤，厲吉，利涉大川。 | The sixth line, undivided, shows him from whom comes the nourishing. His position is perilous, but there will be good fortune. It will be advantageous to cross the great stream. |
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.