謙 → 豫
Hexagram 15: Modesty → Hexagram 16: Enthusiasm
Changing Lines
This transformation involves 2 changing lines (lines 3, 4).
Line 3
九三 勞謙君子。有終吉。
Nine in the third place means: A superior man of modesty and merit Carries things to conclusion. Good fortune.
Line 4
六四 无不利撝謙。
Six in the fourth place means: Nothing that would not further modesty In movement.
Trigram Changes
Yilin Verse
江河淮海，天之奧府；眾利所聚，可以饒有。樂我君子。
The Yangtze, the Yellow, the Huai, the sea: heaven's hidden treasury. Where manifold profits gather; one may thereby grow rich. Delighting our noble lord.
— Jiao Yanshou, Yilin (Forest of Changes), 1st century BCE
Commentary
Earth holds the mountain low, and the rivers, Huai, and sea — heaven's hidden treasury — gather all profits together, yielding abundance enough to enrich and delight the noble one. This verse closely parallels 15-9 but adds a note of joy: 'making my gentleman glad.' The Four Great Rivers serve as nature's vaults where wealth pools naturally. From Modesty to Enthusiasm, thunder erupts from the earth, the ancestral music that stirs heaven and humanity together. What was quietly gathered in modesty now breaks forth in celebration. The transformation is from silent accumulation to exuberant expression: the stored wealth of rivers becomes the thunder of communal joy, and the modest one who gathered in patience now distributes with gladness.
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