豫 → 夬
Hexagram 16: Enthusiasm → Hexagram 43: Breakthrough
Changing Lines
This transformation involves 4 changing lines (lines 1, 2, 3, 5).
Line 1
初六 鳴豫。凶。
Six at the beginning means: Enthusiasm that expresses itself Brings misfortune.
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 3
六三 盱豫悔。遲有悔。
Six in the third place means: Enthusiasm that looks upward creates remorse. Hesitation brings remorse.
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
忠言輔成，王政不傾；公劉兆基，文武綏之。
Loyal counsel upholds and completes; the king governance does not topple. Duke Liu laid the foundation; Kings Wen and Wu brought peace.
— Jiao Yanshou, Yilin (Forest of Changes), 1st century BCE
Commentary
Thunder erupts from the earth as loyal counsel upholds the throne and royal governance stands firm. Gong Liu laid the foundations of the Zhou clan at Bin, and Kings Wen and Wu brought them to fulfillment. Gong Liu, a descendant of Hou Ji, led the Zhou ancestors to settle in Bin where they developed agriculture and laid the groundwork for what would become a dynasty. Generations later, Wen and Wu completed the mission — one through moral accumulation, the other through righteous conquest. From Enthusiasm to Breakthrough, the transformation channels stored energy into decisive action. The lake rises above heaven, and generosity flows downward. Centuries of patient groundwork culminate in the breakthrough moment when the Zhou mandate is secured through both wisdom and force.
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