同人 → 井
Hexagram 13: Fellowship → Hexagram 48: The Well
Changing Lines
This transformation involves 4 changing lines (lines 1, 2, 4, 6).
Line 1
初九 同人于門。无咎。
Nine at the beginning means: Fellowship with men at the gate. No blame.
Line 2
六二 同人于宗。吝。
Six in the second place means: Fellowship with men in the clan. Humiliation.
Line 4
九四 乘其墉。弗克攻。吉。
Nine in the fourth place means: He climbs up on his wall; he cannot attack. Good fortune.
Line 6
上九 同人于郊。无悔。
Nine at the top means: Fellowship with men in the meadow. No remorse.
Trigram Changes
Yilin Verse
龍門水穴，流行不害；民安其土，君臣相保。
At Dragon Gate's water grotto; the flow proceeds without harm. The people rest secure upon their land; lord and minister safeguard each other.
— Jiao Yanshou, Yilin (Forest of Changes), 1st century BCE
Commentary
Heaven and fire form Fellowship, and the Dragon Gate opens not to ambition but to communal well-being. The waters flow through the Dragon Gate's channel without causing harm — Yu the Great's engineering directing the flood into useful currents. The people are settled in their land; ruler and subjects sustain each other. The verse evokes Yu's great work of taming the waters, but refocuses it on the ongoing maintenance of order rather than the heroic act itself. From Fellowship to the Well, the transformation deepens this civic vision. Water drawn up through wood in the Well — the noble man encourages mutual aid among the people. Dragon Gate and Well share the same logic: infrastructure that channels natural forces for communal benefit.
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