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#I Ching #Dayan Method #Yarrow Stalk Divination #Yi Studies

On the Dayan Yarrow Stalk Method

Exploring the philosophical significance and operational principles of the Great Expansion divination method from the I Ching

Tianwen Editorial Team January 27, 2026 7 min read PDF Markdown
On the Dayan Yarrow Stalk Method

2. The Resulting Hexagram

"He divined it and obtained 'Gu becoming Dui' (蛊之兑). The judgment was: 'A thousand chariots are thrice repulsed; after the three repulses, a male fox is captured.'"

This involves a key ancient recording method: "Hexagram Gu becoming Dui."

  • Original Hexagram: Gu (山风蛊, Mountain over Wind).
  • Resultant Hexagram: This is debated. In the Zuo Zhuan tradition, "Gu of Dui" often refers to a specific line change or the inner trigram changing to Dui (Lake). Most commentators believe this indicated the internal trigram (the bottom three lines) changed from Xun (Wind) to Dui (Lake).