
TL;DR: Hexagram 29 Kan (Tập Khảm, 坎, ䷜) is Kan stacked on Kan, water over water, the image of repeated danger. The Judgement promises success only within: hold sincerity and the heart stays open, act and you earn respect. The six line texts map six levels of being trapped, from falling to the pit floor to years of confinement, and the way out lies not in erasing danger but in keeping limits and keeping the heart true.
Quẻ Thuần Khảm (number 29, 坎, ䷜, canonical name Tập Khảm): doubled danger and how to pass through it
What is Quẻ Thuần Khảm and why is it also called Tập Khảm?
Quẻ Thuần Khảm is the twenty-ninth hexagram of the 64 hexagrams of the Kinh Dịch (the Classic of Changes), with both the inner trigram and the outer trigram being Khảm ☵ (water), which is why it is also called Khảm Vi Thủy. The canonical name of the hexagram is Tập Khảm: the character Tập 習 here means to pile up, to repeat, and together with Khảm, meaning abyss, danger, it yields the meaning of danger piled on danger. Among the 64 hexagrams, only this one has the character Tập added to its name, because the two trigram layers are themselves doubled, and the hexagram text also opens with that very character, so the hexagram name and the hexagram statement fuse into one block.
Khảm also carries the meaning of collapse, of sinking in, of hollowing down. Water is the essential nature of Khảm because water is both deep and capable of causing danger. The image of the hexagram is two yin lines clamping a yang line in the middle: a spark, a possibility of survival lying amid the dark. Water above pours down, water below receives it, forming a continuous flow that always holds an undercurrent. This book also cites the old saying that Water governs wisdom, so a person who meets the Khảm hexagram is not necessarily weak, but is someone whose thinking can see through the situation, provided they do not rely on that wisdom to make light of danger.
As for its place in the system, Khảm belongs to the element Yang Water, sits at true North, and Khảm Yang Water controls Ly Yin Fire. The eight hexagrams belonging to the Khảm palace are: Khảm (Bát Thuần Khảm), Thủy Trạch Tiết, Thủy Lôi Truân, Thủy Hỏa Ký Tế, Lôi Hỏa Phong, Địa Hỏa Minh Di, Địa Thủy Sư. According to the Bát Tự Hà Lạc material that this book cites, the number 5 at the center of the Lạc Thư diagram is the point of origin that gives rise to the eight directions and eight trigrams, and Khảm is the white dot near the tail, element Water, position true North.
Why does only this hexagram add the character Tập to its name?
The character Tập 習 originally means a young bird practicing flight, to practice, to learn over and over. Joined to Khảm, it not only speaks of two layers of danger following one another but also suggests repetition: danger comes this time and then the next, and a person too must practice over and over before getting through. The Image text of the hexagram uses exactly that character in the line "the noble one thereby makes constant their virtue and practices the teaching of affairs," that is, keeps virtue constant and practices the work of teaching. If it were simply called Thuần Khảm, the sense of repetition would be lost; called Tập Khảm, it keeps both sides: danger upon danger outside, and training within.
What do the Hexagram Statement and the Image Text of Quẻ Thuần Khảm say?
The Hexagram Statement (Thoán từ) of the hexagram, transcribed according to the Chinese text and the Sino-Vietnamese reading.
- Chinese text: 習坎:有孚,維心亨,行有尚。
- Sino-Vietnamese reading: Tập Khảm: hữu phu, duy tâm hanh, hành hữu thượng.
- Meaning: danger piled on danger; with a sincere heart the mind finds free passage, and in action one earns respect.
This is one of the rare hexagrams that does not promise free passage in outer circumstances but promises it only within the heart. Danger cannot be made to disappear, but if the mind is not bent by danger, a person can still go on. The phrase Hữu phu 有孚 here means having a sincere heart, having something trustworthy in oneself; the character Hanh 亨 points to the mind, not to the affair.
The Image text, likewise according to the traditional interpretation:
- Chinese text: 水洊至,習坎;君子以常德行,習教事。
- Sino-Vietnamese reading: Thuỷ tiến chí, Tập Khảm; quân tử dĩ thường đức hạnh, tập giáo sự.
- Meaning: water arriving in succession is the hexagram Tập Khảm; the noble one accordingly keeps virtue constant and practices the work of teaching.
Wherever water flows it keeps its own nature: meeting rock it goes around, meeting an abyss it pours down, meeting level ground it spreads out. Water gets through because it does not change its essence. The ancients read that image into a lesson: in a time of many changes, keeping virtue steady each day and using self-cultivation to teach others is precisely the way through danger.
The six line statements of Quẻ Thuần Khảm and how to understand each line
The six lines describe six levels of a person surrounded by danger, read from the bottom up. The original Chinese text and the Sino-Vietnamese reading are transcribed according to the traditional source:

| Line | Chinese text | Sino-Vietnamese reading | Meaning |
|---|---|---|---|
| Sơ Lục (1) | 習坎,入于坎窞,凶 | Tập Khảm, nhập vu khảm đạm, hung | Danger piled on danger, falling to the bottom of the abyss, ill-omened |
| Cửu Nhị (2) | 坎有險,求小得 | Khảm hữu hiểm, cầu tiểu đắc | In the abyss there is danger, seek and obtain small things |
| Lục Tam (3) | 來之坎坎,險且枕,入于坎窞,勿用 | Lai chi khảm khảm, hiểm thả chẩm, nhập vu khảm đạm, vật dụng | Wherever one goes there is danger, danger and leaning on it, falling to the bottom, do not act |
| Lục Tứ (4) | 樽酒簋貳,用缶,納約自牖,終无咎 | Tôn tửu quỹ nhị, dụng phữu, nạp ước tự dữu, chung vô cữu | A cup of wine, two bowls of rice, using earthenware, offering through the window, in the end no fault |
| Cửu Ngũ (5) | 坎不盈,祇既平,无咎 | Khảm bất doanh, chỉ ký bình, vô cữu | The abyss is not yet full, the water has already come level, no fault |
| Thượng Lục (6) | 係用徽纆,寘于叢棘,三歲不得,凶 | Hệ dụng huy mặc, trí vu tùng cức, tam tuế bất đắc, hung | Bound with cords, imprisoned among thorns, for three years unable to get out, ill-omened |
Line Sơ Lục: falling to the bottom of the abyss
This is the opening line and also the heaviest line of the lower half. A person who has just entered a difficult period has already slipped very deep at the very first step: sudden unemployment, a relationship abruptly broken, a large loss, a diagnosis in the family. The line statement is brief, one word: ill-omened. The hexagram does not evade that truth. In daily life, this is the moment to accept that one is at the bottom and not to thrash about in haste, because thrashing the wrong way only sinks one deeper into the mud. If one relies on wisdom to make light of danger, one will "nhập vu Khảm hãm," that is, fall into a trap and be unable to get out.
Line Cửu Nhị: still in danger, yet able to seek small things
The second line is the first spark, and also the yang line that is central and correct in the lower half, clamped on both sides by two yin lines. The person is still in the abyss but has regained a little room to maneuver: a small income, a friend reaching out a hand, a temporary job while looking for the main one. The line statement advises that seeking small things will succeed. This is a stage when one should not think of five-year plans, nor set goals of revenge. Keeping food on the table, paying this month's due installment, going to work steadily: small but sure, that is the way out.
Line Lục Tam: wherever one goes there is danger
The third line is the yin line between the two Khảm layers, a person at the position joining the first abyss and the second. Leave this abyss and one meets the next. The line statement says "vật dụng," that is, do not act, meaning it is not the time to make big decisions. This is the situation where work is already hard, there are troubles at home, and health is declining, all three happening at once. Anyone in this line is strongly tempted to look for a shortcut: a hot loan, a reckless job change, arguing it out to the end, running far away. The suggestion of Nhật Nguyệt: this is not the time to make decisions, but the time to hold on.
Line Lục Tứ: a cup of wine, two bowls of rice
This is one of the most beautiful images in the whole Kinh Dịch. In the hardest moment, a cup of wine, two bowls of rice, served in plain earthenware, brought in through the window instead of the main door. As simple as can be, yet the line statement promises: in the end no fault. These are the evenings of eating rice with loved ones in hardship, nothing elaborate but having each other; a word of concern from an old friend at the moment one needs it. In a time of danger, simple sincerity is the lifebuoy. This line speaks of a person who does not have the strength to put down chaos, but whose sincere heart and skillful use of flexibility can bring a good result.
Line Cửu Ngũ: the abyss is not yet full but the water has come level
The fifth line is the yang line at the honored position, central and correct, and also clamped by two yin lines. The water has not yet overflowed but has risen level with the mouth of the abyss, meaning one is close to getting out. The line statement advises that there is no fault, but it is not entirely good either. This is the stage when work has returned, most debts have been paid off, a relationship has begun again. At the honored position and of yang firmness, even in the time of Khảm one can still escape danger and restore order.
Line Thượng Lục: bound and imprisoned among thorns
The topmost line is the yin line at the peak of danger, the image of a person bound with cords, imprisoned among thorns, for three years unable to get out. This is the scene of long-term stagnation: a lawsuit dragging on, a debt with no way out, a mistake that has become a suspended sentence. The line statement is blunt: ill-omened. The hexagram does not promise to rescue someone who has let themselves be imprisoned too long by their own habits.
Why do commentators punctuate the Lục Tứ line differently?
The sentence Lục Tứ 樽酒簋貳,用缶,納約自牖,終无咎 is where the annotated editions do not agree. Some editions punctuate 樽酒 / 簋貳 / 用缶, reading it as a cup of wine, two bowls of rice, using earthenware, that is, listing three items of a modest offering. Some punctuate 樽酒簋 / 貳用缶, reading it as wine in a vessel, rice on a dish, and both of them held in pottery and earthenware. There are also editions reading 簋貳 as two dishes holding rice, or as a dish of rice added on. Different punctuation yields slightly different understandings: one side emphasizes the scantiness of the offering, the other the plainness of the vessels. Both readings lead to the same spirit: in a time of danger, a modest offering and a sincere heart matter more than form. This article follows the punctuation common in current Sino-Vietnamese editions, that is 樽酒 / 簋貳 / 用缶, and notes clearly that this is a place with many readings.
Related hexagrams according to the core: mutual, reverse, opposite
According to the site's core, the relations between Quẻ Thuần Khảm and other hexagrams are as follows:
| Relation | Hexagram | Number | Note |
|---|---|---|---|
| Mutual hexagram | Sơn Lôi Di | 27 | The two middle trigrams of Khảm stacked on Khảm combine into Chấn below, Cấn above |
| Reverse hexagram | Thuần Ly | 30 | Change every yin and yang line and Khảm becomes Ly, water becomes fire |
| Opposite hexagram | Thuần Khảm | 29 | The hexagram is its own opposite, turned upside down it is still itself, one of the eight self-opposite hexagrams |
The opposite hexagram (tổng quái) of Thuần Khảm is Thuần Ly, hexagram number 30. Two operations must be distinguished: the operation of turning the hexagram upside down (tổng) leaves Khảm unchanged because the hexagram is symmetrical, while the operation of changing each line's yin and yang (thác) is what yields Ly. The mutual hexagram Sơn Lôi Di, number 27, speaks of nourishment, a noteworthy hint: in a time of doubled danger, nourishing oneself and those around one is again the hidden inner part.
Is Quẻ Thuần Khảm auspicious or ill-omened?
In the Kinh Dịch, Quẻ Thuần Khảm is classed among the bad hexagrams, an omen of wasted effort, with the image of fishing for the moon at the bottom of a river. A period of difficulty, hardship and obstacles, work hard to accomplish, with need to guard against accidents, illness and sickness. This page advises against taking this as the time to complete a great undertaking, and recommends only persevering to build up strength and confidence while waiting for the opportunity. Another explanation emphasizes a different side: this is the hexagram of the hardest time, and also a lesson in keeping a sincere heart in order to pass through danger without sinking into it.
One way of interpreting cites an old paradox: Khảm is the hexagram of the person who swims well, and it is precisely the good swimmer who often drowns. That paradox reflects the nature of the Khảm hexagram: not every danger comes from outside, but sometimes from carelessness, from our own habit of living alongside danger. Three sources look at the hexagram from three angles: one leans toward warning of fortune and misfortune, one toward the lesson of self-cultivation, one toward the psychology of facing danger. No reading cancels out another.
Applying Quẻ Thuần Khảm to life
When meeting the Khảm hexagram, the aspects of life are usually interpreted as follows: the journey of turning dreams into reality meets many obstacles; marriage is not a perfect union but has trials on both sides; love has many trials and sorrows, hard to blossom and bear fruit; the family meets difficulties but with patience can improve, and at the same time there is also the possibility of scattering because of disharmony; raising children causes much worry; business is not smooth, one should not act rashly, and should wait for a better opportunity. This is how one school of application interprets it, not an absolute assertion about anyone's destiny.
As for self-cultivation, the Image text has already shown the path: keep virtue constant and practice the work of teaching. Water does not change its essence, so it can pass through every terrain; a person who keeps their own essence can pass through every time of danger. The Hexagram Statement promises free passage only in the mind, not in the affair, so the measure of success in the time of Khảm is not outward victory but keeping one's own heart from being bent by danger.
A note on the poem-card source
The book Khổng Minh Thần Toán contains poem cards attached to each line of the Khảm hexagram. It must be said clearly: those are the card sayings of a separate divination book, not the line statements of the Zhou Yi. The two systems differ in origin and use, and should not be mixed when interpreting a hexagram. This article uses only the Zhou Yi line statements according to the Chinese text and the Sino-Vietnamese reading.
How should Quẻ Thuần Khảm be read correctly?
Quẻ Thuần Khảm does not teach how to wipe danger away, because danger is part of circumstance and cannot be made to disappear by wishing. The hexagram statement and the line statements show the way through: keep a sincere heart so the mind is not bent ("hữu phu, duy tâm hanh"), seek small things when great things cannot yet be sought ("cầu tiểu đắc"), do not act when wherever one goes there is danger ("vật dụng"), keep simple sincerity in a hard time, and know that when the water has come level with the mouth of the abyss, that is also the moment one is close to getting out ("khảm bất doanh"). The six lines are six levels, not six fixed verdicts on a person. The most worth keeping from this hexagram lies in its first sentence: hữu phu, duy tâm hanh, hành hữu thượng.
The structure of Quẻ Thuần Khảm in one table
| Item | Value |
|---|---|
| Ordinal number in the Zhou Yi | 29 |
| Chinese character name | 坎 |
| Upper trigram | Khảm (Water) |
| Lower trigram | Khảm (Water) |
| Six lines, from top to bottom | yin, yang, yin, yin, yang, yin |
| Mutual hexagram | Sơn Lôi Di (hexagram number 27) |
| Reverse hexagram | Thuần Ly (hexagram number 30) |
| Opposite hexagram | Thuần Khảm (hexagram number 29) |
