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I Ching Birth Hexagram · Hexagram 29 of 64

Hexagram 29, 坎 Kǎn: water upon water, a pit within a pit

坎 Kǎn is the trigram of water doubled: in each half one whole line is sunk between two broken ones, like a stream at the bottom of a ravine. The character means a pit, and the tradition reads the hexagram as danger met again and again, passed through by sincerity and constancy.

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Hexagram 29, 坎 Kǎn, drawn as six lines numbered from the bottom: broken, whole, broken, broken, whole, broken. The lower, inner trigram is 坎 Kǎn, Water; the upper, outer trigram is 坎 Kǎn, Water. 1 2 3 4 5 6 Upper, outer 坎 Kǎn, Water Lower, inner 坎 Kǎn, Water 29 坎 Kǎn Lines numbered from the bottom
The figure of 坎 from the bottom line up: Water inside, Water outside. Four broken lines, two whole.

Facts

Number
29 of 64, in the received order
Character and pinyin
坎 Kǎn ䷜
Our title
The Abyss
Lines, bottom to top
yin, yang, yin, yin, yang, yin
Lower trigram (inner)
☵ 坎 Kǎn, Water
Upper trigram (outer)
☵ 坎 Kǎn, Water
Within (nuclear)
27 頤 Yí, Nourishment
King Wen pair
30 離 Lí, Brightness
Legge's name (1882)
Khân
Part of the text
The first part (上經), 1 to 30

Meaning

One of the eight doubled hexagrams, and in Legge's English the Judgment says so first: "Khan, here repeated". 坎 means a pit or a hollow in the ground, and its trigram is water in the ravine, a single strong line held between two weak ones. Doubled, it is danger behind danger, a gorge inside a gorge. The Judgment does not soften that. It points instead to what carries a person through: sincerity, a mind that sees its way, and action true to it.

The Image is water that keeps flowing, filling every hollow before it moves on, and the superior man is told to be as constant in his conduct and his teaching. In our own reading, 坎 is about how to be in a hard place: not by leaping out of it, but by going on as water does. Jung's foreword of 1949 tells that this was the second hexagram he drew when he asked the oracle about its own introduction to the West.

The lines

The lines go down into the pit and partly out again. The first enters a cavern within the double ravine; the second, in the full danger, gets "a little (of the deliverance) that he seeks", in Legge's words; the third meets a ravine whether it comes or goes, and is told not to act. The fourth is the hexagram's most human scene: a plain meal, a jug of wine and a basket of rice in earthenware, offered simply through a window. The fifth is water that has not yet reached the brim; the top line is bound with cords among thorns.

Within 坎 lies 頤, hexagram 27; its pair and opposite is 離, hexagram 30, fire.

In the birth cast

The time cast arrives at 坎 when the year, month and day leave 6 on eight, which puts 坎 water 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 60 節 Jié, Measure
  • Line 2 (九二) moving: becomes 8 比 Bǐ, Alliance
  • Line 3 (六三) moving: becomes 48 井 Jǐng, The Well
  • Line 4 (六四) moving: becomes 47 困 Kùn, Confinement
  • Line 5 (九五) moving: becomes 7 師 Shī, The Army
  • Line 6 (上六) moving: becomes 59 渙 Huàn, Scattering

Lines 2 to 5 give the hexagram within, 27 頤 Yí, Nourishment. 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, doubled, in our English sourced
Trigram family places (Shuogua)
middle son, doubled sourced
Trigram body and animal images (Shuogua)
ears and pig, doubled sourced
Trigram phases (a classical correspondence: the Plum Blossom text's table)
Water, doubled. 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 it is itself; every line flipped: 30 離 Lí, Brightness sourced
Human Design gate
Gate 29, from 144.5° to 150.125° of the tropical zodiac on Ra Uru Hu's wheel (1987): a modern placing, not the I Ching's sourced
Our English title
The Abyss: EsoTerrier's own, from the sense of 坎 our construction

How the schools read it

The Zhouyi, in Legge's translation (1882)
“Khan, here repeated, shows the possession of sincerity, through which the mind is penetrating. Action (in accordance with this) will be of high value.”
The Image (大象), one of the Wings, in our paraphrase
Water flowing on continuously; the superior man keeps his virtue constant and practises the business of instruction.
The Plum Blossom method (Ming)
A figure reached by numbers: 坎 above when the year, month and day leave 6 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 29 and puts it on the zodiac; its own reading, which we do not quote.
EsoTerrier
Water upon water, a pit within a pit: difficulty met again and again, passed by keeping faith in the heart and going on like water, which fills each hollow and flows on.

Claims about it

  • Gate 29 of Human Design, at 144.5° to 150.125° of the zodiac, is where the I Ching itself places hexagram 29.

    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 坎 Kǎn 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.

  • When Jung drew hexagram 29 in 1949, synchronicity showed the oracle answering him.

    unverified

    What the record shows: Jung tells the cast in his foreword and frames it in his idea of synchronicity, a hypothesis he offered in place of causality. No test of it exists.

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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