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Hexagram 27 — Dui, The Joyous
Chronological no. 27 (binary-weight order) · King Wen no. (traditional) 58 · 兌
By Anibal Edelberto Amiot — Updated October 1, 2026
the youngest daughter
the youngest daughter
Lakes that join one another: the image of the joyous doubled. Two bodies of water communicate, nourishing one another, each amplifying the other's joy through their sheer proximity. This is the figure of sharing that multiplies rather than divides. Thus the noble one, with his friends, discusses and practices together: true joy, like the water of joined lakes, is never depleted by being shared — it is strengthened by it.
The clarity of the lake that gathers and holds in common. What gathers without constraint, by the sheer natural attraction of what it offers, creates the most lasting bonds. This line says true community is recognized by the lightness with which it forms.
The six lines
At the base of the earth, fullness stirs: the yang onset that carried the whole figure now yields its place.
The steadied earth reaches its limit: the solidity that upheld the structure is about to change its nature.
At the threshold between earth and man, suppleness gathers weight: what once yielded by nature is about to harden.
In the action of man, fullness meets its limit: the initiative that led the figure folds back upon itself.
At the sage's seat, fullness hollows out: the force that governed the figure from its center is about to invert.
At the summit, emptiness reaches its fullest extent and closes: the furthest opening turns toward its opposite.
Source: La Livrée d'Hermès, Anibal Amiot — chapter 7.1 (pp. 63–68). French version of this page.
For the notions used here — magic square, layer and casting, the Yi Jing — see the project lexicon.
The patterns of this hexagram
Eight 12×12 Jacquard patterns are generated from this hexagram, one for each admissible family of the system. Each has its own page: cell, tiling, recolourings and data.
Bases — YANG mutant
Bases — YANG
Pair of two — YANG + YIN mutant
Pair of two — YIN mutant + YANG mutant
Pair of two — YIN + YANG
Pair of two — YIN + YANG mutant
Triple — without YANG
Triple — without YANG mutant
Neighbouring hexagrams
26 — Kun, Oppression · 28 — Xian, Influence
Hexagrams sharing a trigram
Same upper trigram (☱ Dui): 24 — Cui, Gathering Together · 25 — Sui, Following · 26 — Kun, Oppression · 28 — Xian, Influence · 29 — Ge, Revolution · 30 — Da Guo, Preponderance of the Great · 31 — Guai, Breakthrough
Same lower trigram (☱ Dui): 3 — Lin, Approach · 11 — Gui Mei, The Marrying Maiden · 19 — Jie, Limitation · 35 — Sun, Decrease · 43 — Kui, Opposition · 51 — Zhong Fu, Inner Truth · 59 — Lu, Treading
