豫 → 損
Hexagram 16: Enthusiasm → Hexagram 41: Decrease
Changing Lines
This transformation involves 4 changing lines (lines 1, 2, 4, 6).
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 4
九四 由豫。大有得。勿疑。朋盍簪。
Nine in the fourth place means: The source of enthusiasm. He achieves great things. Doubt not. You gather friends around you As a hair clasp gathers the hair.
Line 6
上六 冥豫。成有渝。无咎。
Six at the top means: Deluded enthusiasm. But if after completion one changes, There is no blame.
Trigram Changes
Yilin Verse
日中為市，交易資寶。各利所有，心悅以喜。
At midday the market convenes; goods and treasures are exchanged. Each profits from what the other has; hearts are pleased and glad.
— Jiao Yanshou, Yilin (Forest of Changes), 1st century BCE
Commentary
Thunder breaks from the earth at high noon as the marketplace opens. At midday the people trade their goods and treasures, each profiting from what the other possesses, and all depart with contented hearts. The 'midday market' echoes the Xici Zhuan's account of Shen Nong establishing markets at noon: 'Gather the world's people, collect the world's goods; trade and withdraw, each obtaining what they need.' From Enthusiasm to Decrease, the transformation is subtler than it first appears. Decrease's image is the mountain above the lake — the lower diminished to augment the upper. Yet the market works precisely because decrease and increase are mutual: each party gives up what they have in surplus to gain what they lack, and the transaction itself is the mechanism of Decrease's deeper logic.
The Six Lines app includes all 4,096 Yilin verses, each with original ink brush artwork and full commentary. Download on the App Store