坤 → 兌
Hexagram 2: The Receptive → Hexagram 58: The Joyous Lake
Changing Lines
This transformation involves 4 changing lines (lines 1, 2, 4, 5).
Line 1
初六 履霜堅冰至。
Six at the beginning means: When there is hoarfrost underfoot, Solid ice is not far off.
Line 2
六二 直方大。不習无不利。
Six in the second place means: Straight, square, great. Without purpose, Yet nothing remains unfurthered.
Line 4
六四 括囊。无咎无譽。
Six in the fourth place means: A tied-up sack. No blame, no praise.
Line 5
六五 黃裳。元吉。
Six in the fifth place means: A yellow lower garment brings supreme good fortune.
Trigram Changes
Yilin Verse
車馳人趍，卷甲相仇。齊魯寇戰，敗於犬丘。
Chariots race, men rush; donning armor, taking up feuds. Qi and Lu raid and battle; defeated at Dog Hill.
— Jiao Yanshou, Yilin (Forest of Changes), 1st century BCE
Commentary
Earth upon earth transforms into doubled lake — the Joyous. Chariots race and men rush forward; armies roll up their armor for battle. Qi and Lu clash again, and defeat comes at Dog Hill. Doubled lake, the image of Dui, represents joyous exchange — friends gathering to study together. Yet the verse describes military catastrophe: the hollow enthusiasm of battle ends in rout. Dog Hill (Quanqiu) is a place name associated with frontier skirmishes. From the Receptive to the Joyous, the earth's yielding terrain becomes the battlefield where false joy — the thrill of martial excitement — leads to disaster. Dui's true joy is mutual discourse and shared learning; when its energy is perverted into military adventure, the doubled lake dries up in blood and dust.
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