Hexagram 17 Sui - Complete Guide Part 1: The Symbol and Structure of Following
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BY NICOLE LAU
Hexagram 17 Sui - Complete Guide Part 1: The Symbol and Structure of Following
Sui is the I Ching’s great hexagram of following — of the genuine adaptability that knows when to lead and when to follow, when to act and when to yield, when to hold firm and when to move with the natural current of events. It is one of the most misunderstood hexagrams in the I Ching, because genuine following is not passive compliance or blind obedience but the precise intelligence of the person who understands the natural order and moves with it rather than against it. This is the philosophy and structure of Sui.
The Structure of Sui
Binary and Trigram
Sui is Hexagram 17 in the King Wen sequence. Its binary structure is 011001 — a complex arrangement of yang and yin lines that reflects the dynamic, shifting quality of genuine following. The hexagram has yang lines in the first, fourth, and fifth positions, and yin lines in the second, third, and sixth positions — a structure that captures the interplay of strength and receptivity that genuine following requires.
The Two Trigrams
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Lower trigram: Zhen (震) — Thunder, Movement, Arousing
Thunder is the image of the arousing force that moves all things — the sudden, powerful energy that breaks through the stillness and sets all things in motion. In Sui, the thunder of genuine movement is in the lower position: the genuine inner energy that is the foundation of genuine following. Genuine following is not passive; it is grounded in the genuine inner energy of thunder — the capacity for genuine movement that makes genuine adaptability possible. -
Upper trigram: Dui (兑) — Lake, Joy, Openness
The lake is the image of genuine joy and genuine openness — the quality of the person who receives all things with genuine delight, who is genuinely open to the natural flow of events. In Sui, the lake of genuine joy is above the thunder of genuine movement: the genuine openness that receives the genuine inner energy of thunder and expresses it in the genuine joy of following the natural order.
The Image: Thunder Within the Lake
The Xiang Zhuan (Image Commentary) states: “Thunder in the middle of the lake: the image of Following. Thus the superior person at nightfall goes indoors for rest and recuperation.”
Thunder within the lake is the image of genuine following: the powerful inner energy of thunder held within the joyful openness of the lake. The superior person’s task in Sui is to go indoors at nightfall for rest and recuperation — to follow the natural rhythm of activity and rest, of movement and stillness, of following and leading. This is the temporal intelligence of genuine following: the precise attunement to the natural rhythm of the day that makes genuine adaptability possible.
The Judgment: Supreme Success Through Genuine Following
The Tuan Zhuan (Judgment Commentary) states: “Following has supreme success. Perseverance furthers. No blame.”
Sui’s judgment is one of the most auspicious in the I Ching: supreme success through genuine following. The key is the quality of the following: genuine following — the active, discerning adaptability that moves with the natural order rather than against it — has supreme success. Perseverance furthers: genuine following is not a single act but a sustained quality of genuine inner virtue that perseveres through the natural cycle of following and leading. No blame: the person of genuine following has nothing to defend, nothing to protect, nothing to hide.
The Paradox of Sui: Following as Active Discernment
The central paradox of Sui is that genuine following is not passive compliance but active discernment. The person of genuine following does not follow blindly — they follow with the precise intelligence of the person who understands the natural order and moves with it rather than against it. This is the paradox of Sui: the greatest adaptability requires the greatest genuine inner virtue.
The six lines of Sui make this paradox explicit: Line 1 warns against following with a fixed purpose that abandons genuine inner virtue; Line 3 warns against following the strong man while losing the small boy; Line 4 warns against the following that seeks personal advantage; Line 6 describes the following that is so genuine that it must be held fast. Genuine following is not the absence of genuine inner virtue but its most precise expression.
The Natural Sequence: From Yu to Sui
The Xu Gua Zhuan (Sequence Commentary) states: “When one rejoices, one is sure to follow. Hence after Yu comes Sui.” The natural sequence from Yu (Enthusiasm) to Sui (Following) is the I Ching’s account of how genuine following emerges from genuine enthusiasm: the genuine joy of Yu naturally attracts followers — the people who respond to the genuine enthusiasm of the minister of joy and follow the natural current of genuine collective action. Genuine following is the natural expression of genuine enthusiasm in the social world.
Correspondences and Relationships
- Paired hexagram (Bi Gua): Hexagram 18 Gu (Work on What Has Been Spoiled) — Sui and Gu are paired: genuine following (Sui) is the foundation of the genuine work of correction (Gu). The person who follows the natural order finds the genuine work of correction that Gu describes.
- Inverse hexagram (Zong Gua): Hexagram 18 Gu (Work on What Has Been Spoiled) — the inverse of Sui is Gu: the thunder within the lake (Sui) inverted becomes the wind beneath the mountain (Gu). Genuine following and genuine correction are the two faces of the same genuine inner virtue.
- Nuclear hexagram: Hexagram 23 Bo (Splitting Apart) — the nuclear hexagram of Sui is Bo, the hexagram of splitting apart. The genuine following of Sui contains within itself the seeds of the splitting apart that false following generates: the danger of following that loses genuine inner virtue.
What Is Next in This Series
- Part 1 (This Article): The Symbol and Structure
- Part 2: The Six Lines — Complete Line-by-Line Commentary
- Part 3: Divination Guide — How to Read Sui in Practice
- Part 4: Philosophy — Sui in Confucian, Taoist, and Political Thought
- Part 5: Practical Applications — Leadership, Relationships, Adaptability, Timing
- Part 6: Modern Interpretations — Systems Thinking, Adaptive Leadership, Complexity Science
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