Yü / EnthusiasmThunder Comes From the Earth

Hexagram 16 ·

The time of ENTHUSIASM derives from the fact that there is at hand an eminent man who is in sympathy with the spirit of the people and acts in accord with it. H...

First
Six
Second
Six
Third
Six
Fourth
Nine
Fifth
Six
Top
Six
Quick Guide

The strong line in the fourth place, that of the leading official, meets with response and obedience from all the other lines, which are all weak. The attribute of the upper trigram, Chên, is movement; the attributes of K’un, the lower, are obedience and devotion. This begins a movement that meets with devotion and therefore inspires enthusiasm, carrying all with it. Of great importance, furthermore, is the law of movement along the line of least resistance, which in this hexagram is enunciated as the law for natural events and for human life.

Hexagram Judgment

ENTHUSIASM. It furthers one to install helpers And to set armies marching.

The time of ENTHUSIASM derives from the fact that there is at hand an eminent man who is in sympathy with the spirit of the people and acts in accord with it. Hence he finds universal and willing obedience. To arouse enthusiasm it is necessary for a man to adjust himself and his ordinances to the character of those whom he has to lead. The inviolability of natural laws rests on this principle of movement along the line of least resistance. These laws are not forces external to things but represent the harmony of movement immanent in them. That is why the celestial bodies do not deviate from their orbits and why all events in nature occur with fixed regularity. It is the same with human society: only such laws as are rooted in popular sentiment can be enforced, while laws violating this sentiment merely arouse resentment. Again, it is enthusiasm that enables us to install helpers for the completion of an undertaking without fear of secret opposition. It is enthusiasm too that can unify mass movements, as in war, so that they achieve victory.

Tuan Commentary

Enthusiasm means that the firm receives response and the will is carried out; one moves with obedience, and this is Enthusiasm. Because one moves with obedience, heaven and earth do the same, how much more in establishing lords and moving armies. Heaven and earth move in obedience, therefore sun and moon do not err and the four seasons do not fail. When the sage moves in obedience, punishments are clear and the people submit. Great indeed is the meaning of the time of Enthusiasm.

Enthusiasm is powerful when energy is matched by willing response. Properly ordered excitement aligns human action with the larger rhythms of heaven, earth, and society.

Great Image

Thunder comes resounding out of the earth: The image of ENTHUSIASM. Thus the ancient kings made music In order to honor merit, And offered it with splendor To the Supreme Deity, Inviting their ancestors to be present.

When, at the beginning of summer, thunder—electrical energy—comes rushing forth from the earth again, and the first thunderstorm refreshes nature, a prolonged state of tension is resolved. Joy and relief make themselves felt. So too, music has power to ease tension within the heart and to loosen the grip of obscure emotions. The enthusiasm of the heart expresses itself involuntarily in a burst of song, in dance and rhythmic movement of the body. From immemorial times the inspiring effect of the invisible sound that moves all hearts, and draws them together, has mystified mankind. Rulers have made use of this natural taste for music; they elevated and regulated it. Music was looked upon as something serious and holy, designed to purify the feelings of men. It fell to music to glorify the virtues of heroes and thus to construct a bridge to the world of the unseen. In the temple men drew near to God with music and pantomimes (out of this later the theater developed). Religious feeling for the Creator of the world was united with the most sacred of human feelings, that of reverence for the ancestors. The ancestors were invited to these divine services as guests of the Ruler of Heaven and as representatives of humanity in the higher regions. This uniting of the human past with the Divinity in solemn moments of religious inspiration established the bond between God and man. The ruler who revered the Divinity in revering his ancestors became thereby the Son of Heaven, in whom the heavenly and the earthly world met in mystical contact. These ideas are the final summation of Chinese culture. Confucius has said of the great sacrifice at which these rites were performed: “He who could wholly comprehend this sacrifice could rule the world as though it were spinning on his hand.”

Line Judgments
FirstSix

Enthusiasm that expresses itself Brings misfortune.

A man in an inferior position has aristocratic connections about which he boasts enthusiastically. This arrogance inevitably invites misfortune. Enthusiasm should never be an egotistic emotion; it is justified only when it is a general feeling that unites one with others.

Small Image

Calling out enthusiasm brings misfortune because the position is not fitting.

Uncontrolled display at the beginning is a danger.

SecondSix

Firm as a rock. Not a whole day. Perseverance brings good fortune.

This describes a person who does not allow himself to be misled by any illusions. While others are letting themselves be dazzled by enthusiasm, he recognizes with perfect clarity the first signs of the time. Thus he neither flatters those above nor neglects those beneath him; he is as firm as a rock. When the first sign of discord appears, he knows the right moment for withdrawing and does not delay even for a day. Perseverance in such conduct will bring good fortune. Confucius says about this line: “To know the seeds, that is divine indeed. In his association with those above him, the superior man does not flatter. In his association with those beneath him, he is not arrogant. For he knows the seeds. The seeds are the first imperceptible beginning of movement, the first trace of good fortune (or misfortune) that shows itself. The superior man perceives the seeds and immediately takes action. He does not wait even a whole day. In the Book of Changes it is said: “Firm as a rock. Not a whole day. Perseverance brings good fortune.” Firm as a rock, what need of a whole day? The judgment can be known. The superior man knows what is hidden and what is evident. He knows weakness, he knows strength as well. Hence the myriads look up to him.”

Small Image

Not to the end of the day means one understands what is possible.

Clarity early in the day prevents excess.

ThirdSix

Enthusiasm that looks upward creates remorse. Hesitation brings remorse.

This line is the opposite of the preceding one: the latter bespeaks self-reliance, while here there is enthusiastic looking up to a leader. If a man hesitates too long, this also will bring remorse. The right moment for approach must be seized: only then will he do the right thing.

Small Image

Looking upward in enthusiasm brings regret because the place is not right.

Wrongly placed aspiration leads to regret.

FourthNine

The source of enthusiasm. He achieves great things. Doubt not. You gather friends around you As a hair clasp gathers the hair.

This describes a man who is able to awaken enthusiasm through his own sureness and freedom from hesitation. He attracts people because he has no doubts and is wholly sincere. Owing to his confidence in them he wins their enthusiastic cooperation and attains success. Just as a clasp draws the hair together and holds it, so he draws men together by the support he gives them.

Small Image

Do not doubt; friends gather around means great gain through like minds.

Real enthusiasm attracts real support.

FifthSix

Persistently ill, and still does not die.

Here enthusiasm is obstructed. A man is under constant pressure, which prevents him from breathing freely. However, this pressure has its advantage—it prevents him from consuming his powers in empty enthusiasm. Thus constant pressure can actually serve to keep one alive.

Small Image

Persistently ill, yet not dying, because the center is not lost.

The center preserves life even under strain.

TopSix

Deluded enthusiasm. But if after completion one changes, There is no blame.

It is a bad thing for a man to let himself be deluded by enthusiasm. But if this delusion has run its course, and he is still capable of changing, he is freed of error. A sober awakening from false enthusiasm is quite possible and very favorable.

Small Image

If change comes after completion, there is no blame because the upper line has been exhausted.

Change is still possible even after enthusiasm is exhausted.

Frequently asked questions

What does Yü / Enthusiasm mean in the I Ching?

The time of ENTHUSIASM derives from the fact that there is at hand an eminent man who is in sympathy with the spirit of the people and acts in accord with it. H...

How should I study Hexagram 16 on this page?

Start with the judgment and image, then read the line statements in sequence. A man in an inferior position has aristocratic connections about which he boasts enthusiastically. This arrogance inevitably invites misfortune. Enthusiasm should never be an egoti...

How can this hexagram be applied in a modern reading?

Enthusiasm is powerful when energy is matched by willing response. Properly ordered excitement aligns human action with the larger rhythms of heaven, earth, and society.

Sources and Method

Primary text: Zhouyi / I Ching, including the Judgment, Image, line texts, and related commentaries.

Translation basis: public-domain and modern study references, with AI used only as a learning aid.

Zhouyi / I Ching primary text: The received text of the Book of Changes, including the Judgment, Image, and line statements.

The I Ching or Book of Changes, Richard Wilhelm / Cary F. Baynes: Princeton University Press translation used as a major English-language reference point for names, structure, and commentary framing.

The Sacred Books of China: The Texts of Confucianism, James Legge: Classical English reference used for comparative reading of source terminology and commentarial tradition.

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Enthusiasm is powerful when energy is matched by willing response. Properly ordered excitement aligns human action with the larger rhythms of heaven, earth, and society.

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