TL;DR: Hexagram Lei Shan Xiao Guo (小過, hexagram 62) has Zhen (Thunder) above and Gen (Mountain) below. The judgment says: success, perseverance brings benefit, one can accomplish small matters but not great ones, the bird in flight leaves its call, it is better to descend than to ascend, great fortune. The classic text, the Tuan commentary, the Da Xiang commentary, and Wang Bi's annotations for the six lines are cited in layers, without merging advice into the hexagram text. Nhật Nguyệt's suggestion: when encountering this hexagram, one should value small matters, complete each task neatly, and be cautious with major decisions.
The hexagram Thunder over Mountain, Xiao Guo (小過), is number 62 of the 64 hexagrams of the I Ching. The upper trigram is Zhen (Thunder), the lower trigram is Gen (Mountain). The judgment text reads: 小過：亨。利貞。可小事，不可大事。飛鳥遺之音，不宜上宜下，大吉。 The four layers of text in this hexagram must be read separately: the classic text (the judgment and the line texts), the commentaries (the Tuan commentary and the Xiang commentary, which belong to the Ten Wings), the named annotation (here, Wang Bi's commentary), and only then the interpretation and suggestions for application.
What kind of hexagram is Thunder over Mountain, Xiao Guo, and which trigrams does it consist of?
The hexagram consists of the inner trigram (lower trigram) Gen ☶, the image of a mountain, the image of stopping; and the outer trigram (upper trigram) Zhen ☳, the image of thunder, the image of movement. Read from the bottom up: Gen below, Zhen above, hence it is called Thunder over Mountain, Xiao Guo. The hexagram has two yang lines (line 3 and line 4) and four yin lines (lines 1, 2, 5, 6).
Because yin occupies four of the six parts, and yin is "the small", it is called Xiao Guo, that is, the excess at a small level. This is not a time for doing great things. According to the reasoning of some reference books, this hexagram is also named after the image of "hurrying across a small bridge", with the omen "advancing brings benefit, retreating brings harm". That naming is the folk designation of one line of books, not the official name in the classic text.
A distinction is needed: the classic text consists of the judgment and the line texts. The commentary section from later ages consists of the Tuan commentary, the Xiang commentary, the Xi Ci, the Xu Gua, and the Za Gua, all of which belong to the Ten Wings. These commentary sections are not the original classic text, so when quoting them, they must be called by their correct names.
Why does the Xiao Guo hexagram come after the Zhong Fu hexagram (number 61)?
According to the Xu Gua commentary, when there is trust, one will certainly act, and so after Zhong Fu comes Xiao Guo. Zhong Fu is the hexagram of sincere trust within; once trust exists, people will surely act. But action in this time should only be small action, going slightly beyond in petty matters, not bursting out to do great things. That is why Xiao Guo follows Zhong Fu.
This explanation matches the way the order of the hexagrams in the I Ching is explained along a chain of cause and effect: each hexagram is born from the situation of the previous hexagram. The previous hexagram creates the premise, the next hexagram is the inevitable consequence.
What does the judgment text of the Xiao Guo hexagram say?
Original Chinese text:
小過：亨。利貞。可小事，不可大事。飛鳥遺之音，不宜上宜下，大吉。
Sino-Vietnamese reading:
Tiểu Quá: Hanh, lợi trinh. Khả tiểu sự, bất khả đại sự. Phi điểu di chi âm, bất nghi thượng, nghi hạ, đại cát.
Meaning: it is penetrating, and it is beneficial to hold firm. One can do small matters, one cannot do great matters. The flying bird leaves behind its sound; it should not go up, it should go down, great good fortune.
Wang Bi's commentary (王弼注, in the Zhou Yi Zheng Yi): the flying bird leaves behind its cry, in sorrow seeking a place to rest; the higher it goes, the less there is any suitable place, going lower it finds peace. The higher it goes, the more it is trapped in hardship, there is nothing to compare with the flying bird.
In Nhật Nguyệt's interpretation: the judgment text centers on the image of the flying bird. When the bird flies up it tires, when it flies down it is at peace. In a time of slight excess, the direction indicated by the judgment text is downward, that is, to lower oneself, to soften one's voice, to act small. This is not a time for doing great things, it suits only small matters.
What does the Tuan commentary of the Xiao Guo hexagram say?
Original Chinese text:
小過，小者過而亨也。過以利貞，與時行也。柔得中，是以小事吉也。剛失位而不中，是以不可大事也。有飛鳥之象焉，有飛鳥遺之音，不宜上宜下，大吉；上逆而下順也。
Meaning: Xiao Guo, the small exceeds and so it penetrates. To exceed yet be beneficial to hold firm is to act according to the time. The yielding obtains the middle position, and so small matters are auspicious. The firm loses its position and is not centered, and so one cannot do great matters. There is the image of the flying bird, there is the flying bird leaving behind its sound; it should not go up, it should go down, great good fortune; going up is contrary, going down is compliant.
Wang Bi's commentary: to exceed yet be beneficial to hold firm is to respond to what is appropriate to the time. To carry out the excess in the places of reverence and frugality, that is what is beneficial to hold firm. One who accomplishes great matters must be in the firm and yang. When the yielding and yin gradually grows great, that is the way of being stripped away. It should not go up, it should go down, and precisely this is the image of the flying bird. Going up, it rides over the firm and yang, which is contrary; going down, it continues after the yang, which is compliant. To carry out the excess in a contrary place, no misfortune is greater than this; to carry out the excess in a compliant place, the excess transforms and becomes good.
The Tuan commentary belongs to the Ten Wings, traditionally attributed to Confucius; modern scholarship places it between the 5th and 2nd centuries BCE.
What does the Great Xiang commentary of the Xiao Guo hexagram say?
Original Chinese text:
山上有雷，小過；君子以行過乎恭，喪過乎哀，用過乎儉。
Sino-Vietnamese reading:
Sơn thượng hữu lôi, Tiểu Quá; quân tử dĩ hành quá hồ cung, táng quá hồ ai, dụng quá hồ kiệm.
Meaning: thunder above the mountain is the image of the Xiao Guo hexagram. The noble person follows it and in conduct goes a little beyond in reverence, in mourning goes a little beyond in grief, in spending goes a little beyond in frugality.
This is the most easily applicable sentence of the Great Xiang commentary in the I Ching. In a time that is not a time for doing great things, the direction given is to go a little beyond in three places: courtesy, grief, and frugality. The Great Xiang commentary also belongs to the Ten Wings, traditionally attributed to Confucius; modern scholarship places it between the 5th and 2nd centuries BCE.
What do the six line texts of the Xiao Guo hexagram say, and how does Wang Bi comment on them?
The six lines of the hexagram describe six situations of a bird in flight and of a person living in a time when one must lower oneself, from hurriedly flying up to going too far and meeting disaster.
| Line | Original Sino-Vietnamese text | Meaning |
|---|---|---|
| Chu Liu (line 1) | 飛鳥以凶 / Phi điểu dĩ hung | The bird flies up, hence misfortune |
| Liu Er (line 2) | 過其祖，遇其妣；不及其君，遇其臣；无咎 / Quá kỳ tổ, ngộ kỳ tỉ; bất cập kỳ quân, ngộ kỳ thần; vô cữu | Passing the grandfather, meeting the grandmother; not reaching the ruler, meeting the minister; no harm |
| Jiu San (line 3) | 弗過防之，從或戕之，凶 / Phất quá phòng chi, tòng hoặc tường chi, hung | If one does not guard against it a little beyond, someone following may harm one, misfortune |
| Jiu Si (line 4) | 无咎，弗過遇之。往厲必戒，勿用永貞 / Vô cữu, phất quá ngộ chi. Vãng lệ tất giới, vật dụng vĩnh trinh | No harm, not going beyond and so meeting it. Going brings danger, one must be warned, do not use this path forever |
| Liu Wu (line 5) | 密雲不雨，自我西郊，公弋取彼在穴 / Mật vân bất vũ, tự ngã tây giao, công dặc thủ bỉ tại huyệt | Dense clouds but no rain, from my western outskirts. The duke shoots and takes that one in the cave |
| Shang Liu (line 6) | 弗遇過之，飛鳥離之，凶，是謂災眚 / Phất ngộ quá chi, phi điểu ly chi, hung, thị vị tai sảnh | Not meeting but exceeding, the flying bird is caught in the net, misfortune, this is called calamity |
Line Chu Liu: the bird flies up, hence misfortune
Original text: 初六：飛鳥以凶。
Meaning: the Chu Liu line, the bird flies up, hence misfortune.
The Small Xiang says: 飛鳥以凶，不可如何也 (The bird flies up, hence misfortune, there is nothing to be done about it).
Wang Bi's commentary: in Xiao Guo, going up is contrary and going down is compliant, and this line responds to a line above belonging to the upper trigram; advancing upward it enters a contrary place, with no place to set foot, and this is the misfortune of the flying bird.
In Nhật Nguyệt's interpretation: this is the image of a person in a time when one must lower oneself yet wanting to fly high right from the start. Just entering the profession and already wanting a management position, just getting to know someone and already wanting to formalize, just having a little money and already wanting to expand greatly. The line text writes exactly one word, "misfortune", for that situation.
Line Liu Er: passing the grandfather, meeting the grandmother; not reaching the ruler, meeting the minister
Original text: 六二：過其祖，遇其妣；不及其君，遇其臣；无咎。
Meaning: the Liu Er line, passing the grandfather, meeting the grandmother; not reaching the ruler, meeting the minister; no harm.
The Small Xiang says: 不及其君，臣不可過也 (Not reaching the ruler, because the minister must not exceed).
Wang Bi's commentary: to pass and yet meet is called meeting; to be in Xiao Guo and obtain the correct position, that is to pass and yet meet. The grandfather is the starting place, referring only to the first line. The grandmother is the one within, holding the middle position and correct. Passing the first line and being in the second position, and so it writes "passing the grandfather" and "meeting the grandmother"; passing without reaching the point of usurpation, stopping entirely at the position of a minister, and so it writes "not reaching the ruler, meeting the minister, no harm".
In Nhật Nguyệt's interpretation: the line text speaks of not attaining what one aimed at but attaining what is just sufficient. Intending to meet the highest level but not reaching it, yet meeting the intermediary. Intending to ask for a great decision but not getting it, yet getting the small part resolved first. The line text writes: no harm.
Line Jiu San: not guarding a little beyond, someone following harms one
Original text: 九三：弗過防之，從或戕之，凶。
Meaning: the Jiu San line, if one does not guard against it a little beyond, someone following may harm one, misfortune.
The Small Xiang says: 從或戕之，凶如何也 (Someone following may harm one, how great the misfortune).
Wang Bi's commentary: in the age of Xiao Guo, the great cannot stand, and so the small are made to exceed. This line is above the lower body, takes yang and obtains the correct position, yet cannot guard beforehand against the excess, to the point that the small may sometimes exceed, and then it responds and follows them. That following means the misfortune of being harmed will surely come.
In Nhật Nguyệt's interpretation: the line text is a warning. In a time of Xiao Guo, the precaution named is to guard a little beyond, even beyond the ordinary measure. Situations commonly met: within one's group someone disagrees but one does not notice, a partner shows unusual signs but one overlooks them, documents have gaps but one does not review them.
Line Jiu Si: not going beyond, meeting what is right
Original text: 九四：无咎，弗過遇之。往厲必戒，勿用永貞。
Meaning: the Jiu Si line, no harm, not going beyond and so meeting it. Going brings danger, one must be warned, do not use this path forever.
The Small Xiang says: 弗過遇之，位不當也。往厲必戒，終不可長也 (Not going beyond and so meeting it, because the position is not appropriate. Going brings danger, one must be warned, in the end it cannot last long).
Wang Bi's commentary: although it is a yang line, it is not in its own position, and does not preside over punishment, and so it obtains no harm. Losing its position and being below, it is one who cannot exceed. Because it cannot exceed, it accords with what is appropriate so as to avoid fault, and so it writes "not going beyond and so meeting it". Ease is poison, one cannot embrace and keep it; being in a time of Xiao Guo one is not at ease, and taking yang in a yin position, one is someone who cannot accomplish anything. To use this to keep oneself, avoiding fault, is possible; to use this to advance, that is the way of danger. Not interacting with things, things also do not join with one, there is no assistance, and so danger must be warned against and nothing more, there is no place to seek help. Sunk in timidity, merely keeping oneself, using this to be among a crowd of small people, is not enough to bear burdens, and so it writes "do not use this path forever", meaning it is not enough to be used for holding firm over the long term.
In Nhật Nguyệt's interpretation: the line text describes a person who knows to stop at the right moment, who does not go beyond the limit, and thereby meets a suitable opportunity. But the line text also does not permit complacency: continuing to go will bring danger, do not keep this way of acting forever.
Line Liu Wu: dense clouds but no rain, the duke shoots the creature in the cave
Original text: 六五：密雲不雨，自我西郊，公弋取彼在穴。
Meaning: the Liu Wu line, dense clouds but no rain, from my western outskirts. The duke shoots and takes that one in the cave.
The Small Xiang says: 密云不雨，已上也 (Dense clouds but no rain, because it has already gone up high).
Wang Bi's commentary: Xiao Guo is the small exceeding the great. Liu obtains the fifth position, which is yin flourishing. And so dense clouds but no rain, reaching all the way to the western outskirts. Rain is yin being above, and when yang presses it so it cannot pass through, then it rises up and becomes rain. Now Gen stops below and does not interact, and so there is no rain. Therefore Xiao Xu faces forward and penetrates, yet there is no rain; in Xiao Guo the yang does not interact above, and there is also no rain. Although yin flourishes above, it cannot yet carry out its bestowal of grace. The duke is the highest rank of a minister, and the fifth line is the extreme of yin flourishing, and so it is called the duke. Dặc means to shoot. Being in a cave is a hidden, lurking creature. Xiao Guo is the small exceeding while the calamity is not yet great, still lurking. With the substance of yin governing Xiao Guo, one can catch the small excess, and so it writes "the duke shoots and takes that one in the cave". The way of removing excess is not in catching it, that is dense clouds that cannot yet rain.
In Nhật Nguyệt's interpretation: the line text paints the image of power in surplus but with no great result. A person in a high role in a time of Xiao Guo can only do small matters, not great ones. Completing one small matter thoroughly is worth more than setting out many great matters that do not succeed.
Line Shang Liu: not meeting but exceeding, the bird caught in the net
Original text: 上六：弗遇過之，飛鳥離之，凶，是謂災眚。
Meaning: the Shang Liu line, not meeting but exceeding, the flying bird is caught in the net, misfortune, this is called calamity.
The Small Xiang says: 弗遇過之，已亢也 (Not meeting but exceeding, because it has already risen to the extreme).
Wang Bi's commentary: the excess of the small person then reaches the very top, exceeding without knowing the limit, to the point of the highest extreme. Exceeding to the highest extreme, what is there left to meet? Flying on without stopping, where is there left to lodge? The calamity is brought on by oneself, what more is there to say.
In Nhật Nguyệt's interpretation: the line text is the strongest warning in the hexagram. A person in this role has already gone too far, gone beyond, gone past the limit. The line text names it directly: calamity. This is the image of a person too ambitious, taking on too much, overstepping too much, unwilling to lower oneself even though the time has warned many times.
When meeting the Xiao Guo hexagram while asking about work, how should one understand it?
The question to ask oneself first is: is what I am planning a small matter or a great matter? The judgment text writes "one can do small matters, one cannot do great matters", so if it is a great matter, the classical sources indicate the direction of waiting for another time; if it is a small matter, it can be done, but done thoroughly.
Nhật Nguyệt's suggestions: for work, one may focus on small goals, completing one task neatly before opening a new one. For finances, the spirit of the Great Xiang commentary is to be a little beyond frugal; cut unnecessary spending, but do not cut to the point of affecting core living needs, and one should not take the hexagram's words as certain guidance for large buying or selling. For relationships, the Liu Er line suggests that attaining the just-sufficient part is already fortunate; those doing administrative work, applying for papers, negotiating with large organizations may refer to this line. For leadership, the Jiu Si line suggests stopping at the right moment, not keeping the old way of acting forever when the situation has changed. Nhật Nguyệt's suggestion: for health, guard earlier than usual, do not be complacent. All suggestions here are Nhật Nguyệt's interpretation, not absolute advice.
How does the Xiao Guo hexagram differ from the Da Guo hexagram (number 28)?
This is the pair of hexagrams most easily confused in the I Ching, because the names are similar and both speak of the word "excess".
| Criterion | Xiao Guo (number 62) | Da Guo (number 28) |
|---|---|---|
| Line structure | Two yang lines in the middle, four yin lines surrounding | Four yang lines in the middle, two yin lines at the two ends |
| Which side exceeds | Yin exceeds, that is, the small exceeds | Yang exceeds, that is, the great exceeds |
| Trigram image | Thunder above mountain (Zhen above Gen) | Lake above tree (Dui above Xun) |
| Scope of action | Small matters are possible, great matters are not | Great matters are possible, but there must be support |
| Central image | The flying bird, should go down and not up | The roof beam bends, needs a pillar to prop it |
One is yang exceeding, the other is yin exceeding. Da Guo is a time when the great goes beyond the measure, and one must find support to bear the weight. Xiao Guo is a time when the small goes beyond the measure, and one must lower oneself to stay safe. Confusing these two hexagrams is confusing the whole direction of action.
How do the different schools interpret the Xiao Guo hexagram differently?
The points where books do not agree need to be stated clearly. One line of books interprets the Xiao Guo hexagram as a neutral hexagram, neither absolutely auspicious nor inauspicious, responding according to the matter. Another line of books leans toward warning: in a time when petty people outnumber noble people, important matters require keeping oneself whole, do not hope for great achievements or great deeds.
On the Jiu San line, some books mark this as the worst line of the hexagram because it is pressed by the two yin lines above and pushed by the two yin lines below, with only the Jiu Si line as a friend that cannot help much. This marking differs from the marking of the Shang Liu line as the worst line in the traditional art of interpretation. The two markings do not contradict in essence: both the Jiu San line and the Shang Liu line are warnings, differing only in that the Jiu San line warns the noble person who is complacent, while the Shang Liu line warns the one who has already exceeded the limit.
On the Liu Wu line, some books interpret it in the direction of the yielding being without talent, having no choice but to go down and seek the Liu Er line, also yin, as a companion. This interpretation supplements the interpretation above of "power in surplus but with no great result": both say that the Liu Wu line cannot do great matters.
Is the Xiao Guo hexagram an auspicious hexagram?
There is no absolute answer. The judgment text writes "penetrating", writes "great good fortune" for the direction of flying down, but also writes "cannot do great matters". The Chu Liu line, the Jiu San line, and the Shang Liu line all write misfortune; the Liu Er line and the Jiu Si line write no harm; the Liu Wu line writes a result that is not great. To say this hexagram is an auspicious hexagram or an inauspicious hexagram is forced either way. A more accurate way to put it: this is the hexagram of a time of lowering oneself; whoever complies with the time is at peace, whoever resists the time is in danger.
Notes when looking up and interpreting the Xiao Guo hexagram
The Khổng Minh Thần Toán poem cards are the card text of another book, not the line texts of the I Ching. When looking things up, one should not mix these two systems together. The Xiao Guo hexagram in the Khổng Minh Thần Toán (if it exists) is a separate hexagram of the poem-card system, not hexagram number 62 of the I Ching.
When looking up the Xiao Guo hexagram, one must clearly distinguish four layers of text: the classic text (the judgment and the line texts), the commentaries belonging to the Ten Wings (the Tuan commentary, the Xiang commentary, the Xi Ci, the Xu Gua, the Za Gua), the named annotations from later ages (such as Wang Bi's commentary), and the interpretive books from later ages. Each layer has its own value, but they should not be lumped together into one block.
On the traditional attribution of authorship: the chain of Fu Xi, King Wen, the Duke of Zhou, and Confucius is a traditional attribution; modern scholarship does not consider it proven. The line texts also carry the social norms of ancient times, such as the matter of ruler and minister, the matter of men and women, the matter of mourning rites. That is historical context, not advice to be applied verbatim to the present day. Read to understand the spirit, not to copy rigidly.
The structure of the Thunder over Mountain, Xiao Guo hexagram in one table
| Item | Value |
|---|---|
| Order in the I Ching | 62 |
| Chinese character name | 小過 |
| Upper trigram | Zhen (Thunder) |
| Lower trigram | Gen (Mountain) |
| Six lines, from top to bottom | yin, yin, yang, yang, yin, yin |
| Nuclear hexagram | Lake over Wind, Da Guo (hexagram number 28) |
| Opposite hexagram | Wind over Lake, Zhong Fu (hexagram number 61) |
| Reversed hexagram | Thunder over Mountain, Xiao Guo (hexagram number 62) |
Where do the six lines of the Thunder over Mountain, Xiao Guo hexagram stand, and when a line moves, which hexagram does it change into?
The table reads from the first line (bottom) up to the top line. The line names combine position and nature: yang is called Jiu, yin is called Liu. The last column is the changed hexagram when ONLY that line moves, calculated by the same method that Nhật Nguyệt's hexagram-casting utility uses.
| Line | Name | Nature | Correct position | Centered | Correspondence | When it moves, it changes into |
|---|---|---|---|---|---|---|
| 1 | Chu Liu | yin | no | no | with line 4, has correspondence | Thunder over Fire, Feng (hexagram number 55) |
| 2 | Liu Er | yin | yes | yes | with line 5, no correspondence | Thunder over Wind, Heng (hexagram number 32) |
| 3 | Jiu San | yang | yes | no | with line 6, has correspondence | Thunder over Earth, Yu (hexagram number 16) |
| 4 | Jiu Si | yang | no | no | with line 1, has correspondence | Earth over Mountain, Qian (hexagram number 15) |
| 5 | Liu Wu | yin | no | yes | with line 2, no correspondence | Lake over Mountain, Xian (hexagram number 31) |
| 6 | Shang Liu | yin | yes | no | with line 3, has correspondence | Fire over Mountain, Lu (hexagram number 56) |
