小過 → 震
Hexagram 62: Small Exceeding → Hexagram 51: The Arousing Thunder
Changing Lines
This transformation involves 2 changing lines (lines 1, 3).
Line 1
初六 飛鳥以凶。
Six at the beginning means: The bird meets with misfortune through flying.
Line 3
九三 弗過防之。從或戕之。凶。
Nine in the third place means: If one is not extremely careful, Somebody may come up from behind and strike him. Misfortune.
Trigram Changes
Yilin Verse
門戶之居，可以止舍。進仕不殆，安樂相保。
A dwelling with gate and door, where one may stop and rest; advancing in office without peril; peace and joy, mutually preserved.
— Jiao Yanshou, Yilin (Forest of Changes), 1st century BCE
Commentary
Thunder rumbles above the mountain, and the dwelling has a proper gate — one can stop and rest here. Advancing into official service brings no danger; peace and contentment are mutually sustained. The verse is a domestic affirmation: the house is solid, the gate is functional, the career path is safe, and happiness is self-reinforcing. No crisis, no dramatic tension — just the quiet satisfaction of things working as they should. The gate (門戶) symbolizes both physical shelter and social position: one who has a proper gate has standing in the world. From Small Exceeding to the Arousing, the mountain's thunder doubles into repeated thunder — shock upon shock. Yet the verse promises that even under thunderous conditions, the dwelling holds. Arousal energizes without destroying when the foundation is sound.
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