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I Ching Birth Hexagram · Hexagram 40 of 64

Hexagram 40, 解 Xiè: the storm that breaks and clears

解 Xiè is hexagram 40 of the Zhouyi, which sets thunder over water: the storm breaks and rain falls, and the tension that built up before it is released. The character means to untie or loosen, and the tradition reads the hexagram as the release that follows obstruction, with a rule of timing and a lesson of pardon.

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Hexagram 40, 解 Xiè, drawn as six lines numbered from the bottom: broken, whole, broken, whole, broken, broken. The lower, inner trigram is 坎 Kǎn, Water; the upper, outer trigram is 震 Zhèn, Thunder. 1 2 3 4 5 6 Upper, outer 震 Zhèn, Thunder Lower, inner 坎 Kǎn, Water 40 解 Xiè Lines numbered from the bottom
The figure of 解 from the bottom line up: Water inside, Thunder outside. Four broken lines, two whole.

Facts

Number
40 of 64, in the received order
Character and pinyin
解 Xiè ䷧
Our title
Release
Lines, bottom to top
yin, yang, yin, yang, yin, yin
Lower trigram (inner)
☵ 坎 Kǎn, Water
Upper trigram (outer)
☳ 震 Zhèn, Thunder
Within (nuclear)
63 既濟 Jì Jì, Already Across
King Wen pair
39 蹇 Jiǎn, Obstruction
Legge's name (1882)
Kieh
Part of the text
The second part (下經), 31 to 64

Meaning

Thunder above water: the storm that had gathered breaks, the rain comes down, and the air clears. 解 means to loosen, to untie, to set free, and the hexagram is 蹇 turned over, the obstruction released. The Judgment again favours the south-west, the easy ground, and gives a rule of timing: if nothing more needs doing, go back to how things were; if something does, do it early.

The Image draws from the clearing storm the lesson of pardon: the superior man forgives errors and deals gently with offences. In our own reading, 解 is about letting go at the right moment, of the tension, of the grievance, and of the effort that is no longer needed.

The lines

The first line is blameless, and the text says no more. The second catches three foxes on the hunt and gains "the yellow ( = golden) arrows", in Legge's English. The third carries a load on its back while riding in a carriage, an invitation to robbers; the fourth is told to free itself from its big toe, the weak line that clings to it, so that friends can come. The fifth is the superior man releasing what binds him, and the top line shoots a hawk from a high wall and brings it down.

Within 解 lies 既濟, hexagram 63; its pair is 蹇, hexagram 39, and every line flipped gives 家人, hexagram 37.

In the birth cast

The time cast arrives at 解 when the year, month and day leave 4 on eight, which puts 震 thunder above, and the same total with the hour added leaves 6, which puts 坎 water below. Which line moves depends on what the whole total leaves on six, and each line turns the figure into a different hexagram:

  • Line 1 (初六) moving: becomes 54 歸妹 Guī Mèi, The Younger Sister Weds
  • Line 2 (九二) moving: becomes 16 豫 Yù, Readiness
  • Line 3 (六三) moving: becomes 32 恆 Héng, Constancy
  • Line 4 (九四) moving: becomes 7 師 Shī, The Army
  • Line 5 (六五) moving: becomes 47 困 Kùn, Confinement
  • Line 6 (上六) moving: becomes 64 未濟 Wèi Jì, Not Yet Across

Lines 2 to 5 give the hexagram within, 63 既濟 Jì Jì, Already Across. Everyone born in the same lunar day and double hour has the same cast, so the figure describes a moment, not a person.

Correspondences

Each item with how it stands: “sourced” is in the work cited, “our construction” is EsoTerrier’s own, and “disputed” means the sources disagree.

Trigram virtues (Shuogua, chapter 7)
坎 sinking, perilous below; 震 moving, startling above, in our English sourced
Trigram family places (Shuogua)
middle son below, eldest son above sourced
Trigram body and animal images (Shuogua)
ears and pig below; feet and dragon above sourced
Trigram phases (a classical correspondence: the Plum Blossom text's table)
Water below, Wood above. The Han assignment of 梅花易數, book 1, also used by Jing Fang; not stated as such in the Zhouyi sourced
Inverse and opposite
Upside down: 39 蹇 Jiǎn, Obstruction; every line flipped: 37 家人 Jiā Rén, The Household sourced
Human Design gate
Gate 40, from 155.75° to 161.375° of the tropical zodiac on Ra Uru Hu's wheel (1987): a modern placing, not the I Ching's sourced
Our English title
Release: EsoTerrier's own, from the sense of 解 our construction

How the schools read it

The Zhouyi, in Legge's translation (1882)
“If no (further) operations be called for, there will be good fortune in coming back (to the old conditions).”
The Image (大象), one of the Wings, in our paraphrase
Thunder and rain in action; the superior man forgives errors and deals gently with crimes.
The Plum Blossom method (Ming)
A figure reached by numbers: 震 above when the year, month and day leave 4 on eight, 坎 below when the same total with the hour leaves 6.
Human Design (Ra Uru Hu, 1987)
Takes the number for its gate 40 and puts it on the zodiac; its own reading, which we do not quote.
EsoTerrier
Thunder and rain: the knot comes loose and the tension lifts; let mistakes go and return to ordinary life quickly, without carrying the old load.

Claims about it

  • Gate 40 of Human Design, at 155.75° to 161.375° of the zodiac, is where the I Ching itself places hexagram 40.

    false

    What the record shows: The wheel is Shao Yong's circle rotated by Ra Uru Hu in 1987 to 1989 so that hexagram 41 starts at 2° Aquarius. No Chinese source we found puts the hexagrams on degrees of the zodiac.

  • Being born under 解 Xiè fixes a person's character.

    unverified

    What the record shows: A modern reading with no source in the tradition. The Zhouyi has no birth hexagram; the cast reads a figure, not a person, and everyone born in the same lunar day and double hour shares it.

Elsewhere on EsoTerrier

Sources

Primary texts (6)
  1. James Legge (trans.), The Yî King, Sacred Books of the East XVI. Oxford: Clarendon Press, 1882. Public domain; quoted briefly and credited. en.wikisource.org/wiki/Sacred_Books_of_the_East/Volume_16
  2. 梅花易數 (Meihua yishu, the Plum Blossom method), attributed to Shao Yong, book 1: the time rule, the trigram numbers and phases, and the casts of the plum blossom and the peonies. zh.wikisource.org/wiki/梅花易數/卷一
  3. 周易 (Zhouyi), the received Chinese text of the hexagram and line statements with the Ten Wings. ctext.org/book-of-changes
  4. The same, the 1882 Oxford edition scanned (archive.org), for hexagrams 33 to 64 and the appendices. archive.org/details/sacredbooksofchi16conf
  5. The Unicode Standard, Yijing Hexagram Symbols, U+4DC0 to U+4DFF. unicode.org/charts/PDF/U4DC0.pdf
  6. 京氏易傳 (Jingshi yizhuan), attributed to Jing Fang, three books. zh.wikisource.org/wiki/京氏易傳
Studies and other sources (3)
  1. "King Wen sequence", Wikipedia. en.wikipedia.org/wiki/King_Wen_sequence
  2. Jovian Archive, "Gates and hexagrams in Human Design" (cited for the wheel's origin only). jovianarchive.com/pages/gates-and-hexagrams-in-human-design
  3. "Hexagram (I Ching)", Wikipedia. en.wikipedia.org/wiki/Hexagram_(I_Ching)
Our own research (5)
  1. EsoTerrier, I Ching research, 10 to 14 October 2026: the method, the validation (61 births), the variants and the lists.
  2. EsoTerrier calculation engine, the I Ching service and its reference tables (titles, glosses and readings our own).
  3. EsoTerrier, Gene Keys research, 9 October 2026: the legal and trade-mark report, on which hexagram names are free to use.
  4. EsoTerrier, Human Design research, 9 October 2026: the wheel, gate 41 at 2° Aquarius, 5.625° per gate.
  5. EsoTerrier, engine audit of 14 October 2026: the reworded titles, readings and trigram qualities, with the passages each rests on.

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By EsoTerrier. Written with AI assistance from our research and checked against its sources; last revised 19 October 2026. How we write these pages.

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