大壯 → 乾
Hexagram 34: Great Power → Hexagram 1: The Creative
Changing Lines
This transformation involves 2 changing lines (lines 5, 6).
Line 5
六五 喪羊于易。无悔。
Six in the fifth place means: Loses the goat with ease. No remorse.
Line 6
上六 羝羊觸藩。不能退。不能遂。无攸利。艱則吉。
Six at the top means: A goat butts against a hedge. It cannot go backward, it cannot go forward. Nothing serves to further. If one notes the difficulty, this brings good fortune.
Trigram Changes
Yilin Verse
金齒鐵牙，壽考宜家，年歲有儲。貪利者得，離其咎憂。
Teeth of gold, jaws of iron; long life befitting the household, stores enough for the year. The covetous find gain; calamity and worry depart.
— Jiao Yanshou, Yilin (Forest of Changes), 1st century BCE
Commentary
Thunder roars above heaven, the image of Great Power: raw yang force demanding proper conduct. Teeth of gold and jaws of iron suggest a constitution built to last, a body forged for endurance. The household thrives, granaries overflow year after year, and even the profit-seeker finds gain without falling into blame. This is not passive good fortune but the active vigor of one whose strength is so well grounded that it naturally generates abundance. The transformation from Great Power to the Creative doubles heaven's energy: thunder over heaven becomes heaven upon heaven. When power is exercised with self-generating initiative rather than reckless force, longevity and prosperity follow as natural consequences, and even ambition finds its proper channel.
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