蠱 → 大壯
Hexagram 18: Work on the Decayed → Hexagram 34: Great Power
䷑
蠱
Work on the Decayed
Mountain / Wind
→
䷡
大壯
Great Power
Thunder / Heaven
Changing LinesStable Lines
Changing Lines
This transformation involves 3 changing lines (lines 1, 4, 6).
Trigram Changes
Upper TrigramMountain → ThunderKeeping Still → The Arousing
Lower TrigramWind → HeavenThe Gentle → The Creative
Yilin Verse
陰變為陽，女化為男；治道得通，君臣相承。
Yin transforms into yang; the female changes to male. The way of governance opens; lord and minister succeed one another.
— Jiao Yanshou, Yilin (Forest of Changes), 1st century BCE
The Six Lines app includes all 4,096 Yilin verses, each with original ink brush artwork and full commentary. Download on the App Store