革 → 蹇
Hexagram 49: Revolution → Hexagram 39: Obstruction
䷰
革
Revolution
Lake / Fire
→
䷦
蹇
Obstruction
Water / Mountain
Changing LinesStable Lines
Changing Lines
This transformation involves 2 changing lines (lines 1, 4).
Trigram Changes
Upper TrigramLake → WaterThe Joyous → The Deep
Lower TrigramFire → MountainThe Clinging → Keeping Still
Yilin Verse
无足斷跟，居處不安，凶惡為殘。
A broken-winged bird trapped in a cage; a snapped-string qin hangs empty on the wall. Blades on all four walls, nowhere to lean — sitting or standing, no peace, wind every night.
— 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