豫 → 坎
Hexagram 16: Enthusiasm → Hexagram 29: The Abysmal Water
Changing Lines
This transformation involves 3 changing lines (lines 2, 4, 5).
Line 2
六二 介于石。不終日。貞吉。
Six in the second place means: Firm as a rock. Not a whole day. Perseverance brings good fortune.
Line 4
九四 由豫。大有得。勿疑。朋盍簪。
Nine in the fourth place means: The source of enthusiasm. He achieves great things. Doubt not. You gather friends around you As a hair clasp gathers the hair.
Line 5
六五 貞疾。恆不死。
Six in the fifth place means: Persistently ill, and still does not die.
Trigram Changes
Yilin Verse
西過虎廬，驚其前樞。雖憂無尤。
Passing west by the tiger den, startling its front threshold. Though there is alarm, there is no blame.
— Jiao Yanshou, Yilin (Forest of Changes), 1st century BCE
Commentary
Thunder breaks from the earth, but the traveler passes west by a tiger's lair and startles the beast at its doorstep. Fear grips the heart — yet in the end, there is no fault. The encounter is terrifying but ultimately harmless: the tiger is surprised, the traveler alarmed, but neither suffers injury. From Enthusiasm to The Abysmal, the transformation plunges into doubled water, repeated danger. The verse captures the essence of Kan: passing through peril with sincerity of heart. The tiger's den is the abyss one must traverse; the alarm is real, but the outcome — 'though anxious, no blame' — embodies Kan's teaching that one who maintains inner truth can navigate danger without being consumed by it.
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