
TL;DR: Hexagram Earth over Thunder, Fu (Return), is the 24th hexagram in the I Ching sequence, with Earth above and Thunder below, symbolizing thunder within the earth. It corresponds to the month of Zi, the eleventh lunar month, and the winter solstice, when one yang line is born beneath five yin lines. The hexagram text reads: Fu: Prosperity. Going out and coming in without illness, friends come without blame. Reversing and returning to the way, after seven days comes the return, favorable to have a destination. The Great Image reads: Thunder in the earth, Fu; the former kings on the solstice closed the passes, merchants and travelers did not travel, and the sovereign did not inspect the regions. Nhật Nguyệt's suggestion: when encountering this hexagram, regard it as a time to review one's direction, strengthen foundations, and begin with small matters, not forcing when resources are still weak. This is a way of contemplation, not an absolute prophecy for finances or health.
What is the Di Lei Fu Hexagram?
The Di Lei Fu hexagram (復) is the 24th of the 64 hexagrams of the I Ching, in the Zhou Yi ordering. It consists of Kun (Earth) above and Zhen (Thunder) below: the image of thunder lying within the earth, a latent force waiting for the day it rises. Tradition attributes the drawing of the hexagrams to Fu Xi, the naming and the hexagram statement to King Wen, the line statements to the Duke of Zhou, and the Ten Wings to Confucius; modern scholarship does not treat this chain of authorship as proven, and places the commentary layers between roughly the 5th and 2nd centuries BCE.
Structure and symbolism
Hexagram diagram
| Position | Line | Meaning |
|---|---|---|
| Line 6 (top) | Yin (- -) | Compliance, ending, submission |
| Line 5 | Yin (- -) | The wise ruler, central and balanced |
| Line 4 | Yin (- -) | A transitional stage, requiring caution |
| Line 3 | Yin (- -) | Inner conflict, hesitation |
| Line 2 | Yin (- -) | A companion, support |
| Line 1 (bottom) | Yang (,) | New vitality, the origin, potential |
The crux of the Fu hexagram lies in line 1, the single yang line. This line represents the first spark of yang energy just born at the bottom of stillness. In nature, this resembles the moment of the winter solstice, when yang energy begins to stir in the depths of cold winter, or the first seed sprouting within the earth. Its strength is still tiny, yet it holds limitless potential.
What does the image of "thunder within the earth" mean?
Thunder (Lei) is the symbol of movement, of action and awakening. When thunder lies beneath the earth, it cannot yet produce its sound, cannot yet bring forth great power. It is only accumulating energy. This image suggests a lesson about beginnings: every great change originates in something very small, quiet, and in need of time to be nurtured.
Which month and which solar term does the Fu hexagram correspond to?
The Fu hexagram corresponds to the month of Zi, that is, the eleventh lunar month, and to the winter solstice. This is the classic waxing-and-waning hexagram of the moment when one yang line has just been born beneath five yin lines, opening the cycle of returning yang energy.
In the interpretation of Bát Tự Hà Lạc (a Vietnamese method combining BaZi and the Luo Shu grid), people living in the world of yang should take yang energy as host and let yin energy be guest, and so must follow the "host" right from the moment the fire is first kindled, that is, from the winter solstice in the eleventh month, when the Fu hexagram begins with its first yang line, known as "one yang arising." According to the same book, the law of yin and yang waxing and waning operates with perfect fairness: as yang energy grows, yin energy must wane, and the reverse. From the Fu hexagram with one yang line, yang energy increases through the following hexagrams, then reaches the Gou hexagram with five yin lines and finally the Kun hexagram with six yin lines; when yin has reached its extreme, it must yield for yang to rise, reopening a new cycle in the eleventh month of the following year, on the very day of the winter solstice, with the return of the Fu hexagram. That rising and falling cycle alternately governs the four seasons and eight directions, year after year, in an unchanging order.
It should be stated clearly that this is a reading according to the waxing-and-waning hexagram-energy school, which ties the 64 hexagrams to the 12 months and 24 solar terms. This assignment is a system of its own, not the only way to use the hexagrams, so when consulting other sources one may encounter different ways of mapping them to time.
What do the original words of the Fu hexagram in the Zhou Yi say?
The original text consists of the hexagram statement and the line statements, transcribed according to the Zhou Yi text. The hexagram statement reads: 復:亨。出入无疾,朋來无咎。反復其道,七日來復,利有攸往。 Close meaning: Fu is success. Going out and coming in without illness, friends arriving without fault. Returning to its way, in seven days it returns, favourable to have somewhere to go.
The line statements read:
- First nine: 不遠復,无祇悔,元吉。 Close meaning: Not far, then returning, not reaching regret, greatly auspicious.
- Second six: 休復,吉。 Close meaning: Returning beautifully, auspicious.
- Third six: 頻復,厲无咎。 Close meaning: Returning again and again, perilous but without fault.
- Fourth six: 中行獨復。 Close meaning: Walking in the middle, returning alone.
- Fifth six: 敦復,无悔。 Close meaning: Returning with depth, without regret.
- Top six: 迷復,凶,有災眚。用行師,終有大敗,以其國君,凶;至于十年,不克征。 Close meaning: Deluded returning, inauspicious, there is disaster. Used to march an army, in the end great defeat, involving the ruler of the state, inauspicious; even to ten years, unable to conquer.
The commentary section belongs to the Ten Wings, traditionally attributed to Confucius; modern scholarship places it between roughly the 5th and 2nd centuries BCE. The Tuan Commentary says: 復亨;剛反,動而以順行,是以出入无疾,朋來无咎。反復其道,七日來復,天行也。利有攸往,剛長也。復其見天地之心乎? Close meaning: Fu is success; the firm returns, moving and proceeding with compliance, therefore going out and coming in without illness, friends arriving without fault. Returning to its way, in seven days it returns, this is the movement of heaven. Favourable to have somewhere to go, because the firm grows. Fu, does it not reveal the heart of heaven and earth?
The Great Image says: 雷在地中,復;先王以至日閉關,商旅不行,后不省方。 Close meaning: Thunder within the earth, this is Fu; the former kings on the solstice closed the passes, merchants and travellers did not move, the ruler did not inspect the regions.
The Small Image for each line:
- First nine: 不遠之復,以修身也。 Close meaning: Returning without going far, in order to cultivate oneself.
- Second six: 休復之吉,以下仁也。 Close meaning: The auspiciousness of returning beautifully, because one humbles oneself before the humane.
- Third six: 頻復之厲,義无咎也。 Close meaning: The peril of returning again and again, in terms of what is right there is no fault.
- Fourth six: 中行獨復,以從道也。 Close meaning: Walking in the middle and returning alone, in order to follow the way.
- Fifth six: 敦復无悔,中以自考也。 Close meaning: Returning with depth without regret, using the centre to examine oneself.
- Top six: 迷復之凶,反君道也。 Close meaning: The inauspiciousness of deluded returning, it goes against the way of a ruler.
What does Wang Bi's commentary on the Fu hexagram say?
Wang Bi's commentary in the Zhou Yi Zheng Yi, on the phrase "反復其道,七日來復," says: 陽氣始剝盡至來復時,凡七日。 Close meaning: From when yang energy first strips away completely to when it returns, seven days in all. On the phrase "天行也" he says: 以天之行,反覆不過七日,復之不可遠也。 Close meaning: By the movement of heaven, the going back and forth is no more than seven days, the return cannot be far off. On the phrase "利有攸往,剛長也" he says: 往則小人道消也。 Close meaning: Going forward, the way of the petty person fades. On the phrase "復,其見天地之心乎" he says: 復者,反本之謂也,天地以本為心者也。凡動息則靜,靜非對動者也。語息則默,默非對語者也。然則天地雖大,富有萬物,雷動風行,運化萬變,寂然至無,是其本矣。故動息地中,乃天地之心見也。若其以有為心,則異類未獲具存矣。 Close meaning: Fu means returning to the root, and heaven and earth take the root as their heart. Whenever movement rests, there is stillness, and stillness is not the opposite of movement. When speech rests, there is silence, and silence is not the opposite of speech. Thus although heaven and earth are great, rich with the ten thousand things, thunder moves and wind blows, transforming in ten thousand ways, yet silent and utterly empty, that is their root. Therefore when movement rests within the earth, the heart of heaven and earth is revealed. If they took having as their heart, then other kinds could not all coexist.
Wang Bi's commentary on the First Nine line: 最處復初,始復者也。復之不速,遂至迷凶,不遠而復,幾悔而反,以此修身,患難遠矣。錯之於事,其始庶幾乎?故「元吉」也。 Close meaning: Dwelling at the very beginning of Fu, one who is just starting to return. If the return is not swift, one arrives at deluded inauspiciousness; returning without going far, turning back when regret is near, cultivating oneself by this, hardship stays far away. Applied to affairs, is this not close to the beginning? Therefore "greatly auspicious."
Wang Bi's commentary on the Second Six line: 得位處中,最比於初。上無陽爻以疑其親,陽為仁行,在初之上而附順之,下仁之謂也。既處中位,親仁善鄰,復之休也。 Close meaning: Attaining the position and dwelling in the centre, closest to the first. Above there is no yang line to cast doubt on its closeness, yang is the practice of humaneness, and being above the first and attaching itself compliantly to it, this is what is meant by humbling oneself before the humane. Having dwelt in the central position, being close to the humane and good to its neighbour, this is the beauty of returning.
Wang Bi's commentary on the Third Six line: 頻,頻蹙之貌也。處下體之終,雖愈於上六之迷,巳失復遠矣,是以蹙也。蹙而求復,未至於迷,故雖危無咎也。復道宜速,蹙而乃復,義雖無咎,它來難保。 Close meaning: Pin means the look of a furrowed brow. Dwelling at the end of the lower body, though better than the delusion of the top six, one has already lost the return and gone far, and so one frowns. Frowning and seeking to return, one has not yet reached delusion, and so though perilous there is no fault. The way of returning should be swift; to return only with a frown, though in terms of what is right there is no fault, what comes next is hard to safeguard.
Wang Bi's commentary on the Fourth Six line: 四上下各有二陰而處厥中,履得其位而應於初,獨得所復,順道而反,物莫之犯,故曰「中行獨復」也。 Close meaning: The fourth has two yin lines above and below and dwells in their middle, treads in its proper position and responds to the first, alone attaining where to return, turning back along the way, and nothing trespasses against it, therefore it says "walking in the middle, returning alone."
Wang Bi's commentary on the Fifth Six line: 居厚而履中,居厚則無怨,履中則可以自考,雖不足以及「休復」之吉,守厚以復,悔可免也。 Close meaning: Dwelling in depth and treading the centre; dwelling in depth, there is no resentment; treading the centre, one can examine oneself. Though not enough to reach the auspiciousness of "returning beautifully," guarding depth in returning, regret can be avoided.
Wang Bi's commentary on the Top Six line: 最處復後,是迷者也。以迷求復,故曰「迷復」也。用之行師,難用有克也,終必大敗。用之於國,則反乎君道也。大敗乃復量斯勢也。雖復十年修之,猶未能征也。 Close meaning: Dwelling at the very end of Fu, this is one who is deluded. Seeking return through delusion, therefore it says "deluded returning." Using it to march an army, it is hard to use with any victory, and in the end there will surely be great defeat. Using it for a state, it goes against the way of a ruler. Only after great defeat does one then reassess this situation. Even if one cultivates it for ten years, one still cannot conquer.
Zhu Xi's Zhou Yi Ben Yi: the commentary for this hexagram could not be separated out, so it is not cited here.
What is Nhật Nguyệt's understanding of the Fu hexagram?
In Nhật Nguyệt's understanding, the Fu hexagram is the image of a sprout of life just pushing up beneath the cold earth. The hexagram statement and line statements speak of returning, of going out and coming in without illness, of friends arriving without fault, and of the seven-day mark of return. The Tuan Commentary calls this the movement of heaven, and the Great Image says the former kings closed the passes on the solstice, merchants and travellers did not move, and the ruler did not inspect the regions. Wang Bi's commentary reads the word Fu as returning to the root, and holds that when movement rests within the earth, the heart of heaven and earth is revealed.
Nhật Nguyệt understands this general spirit as follows: at the moment of fresh recovery, one should preserve and protect, not force things, not expand activity while the sprout of life is still tender. This is a reading for reflection, not an absolute prophecy about finances or health.
When the Fu hexagram appears in a question about work, how should it be understood?
Nhật Nguyệt's suggestion: if you are asking about work and encounter the Fu hexagram, treat this as a time to look again at your direction and correct small mistakes before expanding. You might begin with a small project, a short-term goal, and keep an even pace rather than pouring all your strength in at once. This does not guarantee an outcome, it is only a way of arranging work in keeping with the "returning" spirit of the hexagram.
When the Fu hexagram appears in a question about love, how should it be understood?
Nhật Nguyệt's suggestion: in matters of love, the Fu hexagram suggests looking again at the values you began with, listening to each other and tending to the small things. This is a suggestion for reflection, not a promise of reconciliation or separation. The line statements about marriage, ruler and minister, man and woman in the I Ching belong to the social context of ancient times, and so should be read as historical material, not turned into a standard for today.
When the Fu hexagram appears in a question about money and health, how should it be understood?
Nhật Nguyệt's suggestion: regarding money, the Fu hexagram suggests caution, and that one should not place large bets while resources are still thin; strengthen the foundation first. Regarding health, this is a time to rest, keep daily rhythms steady, and if there is a problem, ask someone with professional expertise. Nhật Nguyệt does not assert that the hexagram determines anyone's fate, finances or health.
What is Nhật Nguyệt's suggestion for using the Fu hexagram in life today?
Nhật Nguyệt's suggestion: at work, quieten your mind and look again at your strategy, learn from mistakes and prepare for a new cycle, starting with small things. In relationships, return to the values you began with, listen and understand each other more. In personal development, this is a good time to begin a good habit at low intensity and keep it steady. In a leadership role, pay attention to the collective's rhythm of rest, and do not push when resources are still young.
The I Ching is a system of philosophy and culture; consulting the hexagrams should be treated as a tool for reflection and for orienting one's thinking, not as a form of absolute prophecy about financial or health matters. Every important decision still needs to rest on rational consideration and real, evidence-based grounds.
Quick reference table for the Di Lei Fu hexagram
| Item | Content |
|---|---|
| Hexagram name | Di Lei Fu (復) |
| Ordinal number | 24 |
| Upper trigram | Kun (Earth) |
| Lower trigram | Zhen (Thunder) |
| The single yang line | First nine |
| Waxing-and-waning month | The month of Zi, the eleventh lunar month |
| Solar term | Winter solstice |
| Hexagram statement | 復:亨。出入无疾,朋來无咎。反復其道,七日來復,利有攸往。 |
| Great Image | 雷在地中,復;先王以至日閉關,商旅不行,后不省方。 |
What are the nuclear and transformed hexagrams of Di Lei Fu?
The nuclear hexagram of Di Lei Fu takes lines 2, 3 and 4 as the lower body and lines 3, 4 and 5 as the upper body, yielding Kun above and Zhen below, which is also Di Lei Fu. The transformed hexagram depends on which line is moving; if only the First Nine moves, it transforms into Di Ba Chun Kun. Other moving lines will give other transformed hexagrams, and one must consult according to the specific moving line.
Overview article on the topic: What is the I Ching.
