咸 → 豫
Hexagram 31: Influence → Hexagram 16: Enthusiasm
Changing Lines
This transformation involves 2 changing lines (lines 3, 5).
Line 3
九三 咸其股。執其隨。往吝。
Nine in the third place means: The influence shows itself in the thighs. Holds to that which follows it. To continue is humiliating.
Line 5
九五 咸其脢。无悔。
Nine in the fifth place means: The influence shows itself in the back of the neck. No remorse.
Trigram Changes
Yilin Verse
山水暴怒，壞梁折柱。稽難行旅，留連愁苦。
Mountains and waters rage in fury; destroying the bridge, snapping its pillars. Travelers are detained and delayed; lingering on in sorrow and grief.
— Jiao Yanshou, Yilin (Forest of Changes), 1st century BCE
Commentary
A lake upon a mountain, and the mountain's waters rage. Flash floods crash down with sudden violence, smashing bridges and snapping pillars. Travelers are stranded, unable to move forward, lingering in worry and bitterness. The 'mountain water's fury' (山水暴怒) directly invokes the physical landscape of hexagram 31 — the lake atop the mountain — but here the lake overflows destructively rather than nourishing gently. From Influence to Enthusiasm, the mountain's receptivity becomes thunder bursting from the earth. Thunder that should inspire joy and music instead manifests as uncontrolled natural force. The enthusiasm of release without channeling becomes mere destruction: bridges that once connected communities are swept away, and what should be joyful movement becomes forced immobility.
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