Hexagram 16 Yù (豫): Enthusiasm, Meaning and Six Lines
Sixteenth hexagram of the I Ching: Thunder rising from the Earth, the joyful impulse that brings people together. Judgement, six lines, moving lines and a careful reading of Enthusiasm.
Key points
| Number | 16 of 64 (King Wen order) |
|---|---|
| Chinese name | 豫 (Yù) |
| Approximate pronunciation | yü (the ü as in French “lune”) |
| Name (French tradition followed here) | Yu, Enthusiasm |
| Lower trigram (inner) | Kun, Earth |
| Upper trigram (outer) | Zhen, Thunder |
| Lines, from bottom to top | yin / yin / yin / yang / yin / yin |
| Twin hexagram | No. 15, Qian (humility), Humility |
Hexagram 16: Yù (豫), name and composition
Hexagram 16 is called “Enthusiasm”. The character combines the idea of pleasure and ease with that of preparation and anticipation. It speaks of the joyful impulse that sets people in motion, and of what it takes for that impulse to bear fruit.
Hexagram no. 16 is written 豫 and transliterated Yù in pinyin; it is pronounced approximately “yü” (the ü as in French “lune”). It is made of two trigrams stacked one above the other: below, inside, Kun (Earth); above, outside, Zhen (Thunder). The overall image is therefore Thunder above Earth.
The six lines, from bottom to top, are: yin (broken), yin (broken), yin (broken), yang (solid), yin (broken), yin (broken). In King Wen’s order it forms a pair with hexagram 15 (Qian, Humility), which is the same figure turned upside down.
The judgement in brief
The judgement says it is favourable to set up relays and to put a troop in motion. In more modern terms: when enthusiasm is shared, it becomes possible to organise collective action.
General meaning
Thunder rises from the Earth: in spring, the first thunder wakes the soil. It is a moment of joy, music and celebration. A single yang line, the fourth, is surrounded by yin lines: a person whose impulse carries everyone else along. The tradition links the hexagram with music and festivals, which bring people together.
Enthusiasm is ambivalent: a driving force when it rests on a solid base, a trap when it becomes vanity or flight. The lines describe the one who boasts and fails, the one who stands firm like a rock, the one who hesitates, the one who becomes the source of the impulse, the one who is restrained without being extinguished, and finally blind enthusiasm.
The six lines, one by one
The lines are counted from bottom to top. Here, summarised in our own words, is the image the ancient text attaches to each one; the last column gives the hexagram obtained if that line alone is moving.
| Line | Nature | Summarised image | If it is moving |
|---|---|---|---|
| 1 | yin (broken) | Proclaiming one’s joy or one’s powerful connections: boasting, a bad sign. | No. 51 (Zhen) |
| 2 | yin (broken) | Firm as a rock, without waiting for the end of the day: a clear-sightedness that distinguishes what is essential; good fortune. | No. 40 (Xie) |
| 3 | yin (broken) | Waiting for enthusiasm to come from elsewhere, looking up: regret; hesitation too. | No. 62 (Xiao Guo) |
| 4 | yang (solid) | The source of enthusiasm: much is obtained without hesitation, and friends gather. | No. 2 (Kun) |
| 5 | yin (broken) | A persistent constraint weighs but does not extinguish the impulse. (Image: a stubborn illness that does not kill; do not look for any diagnosis in it.) | No. 45 (Cui) |
| 6 | yin (broken) | An enthusiasm that has gone blind: if it changes course, there is no fault. | No. 35 (Jin) |
The moving lines
A moving line is a line that the casting marks as unstable: one reads its own text, then it turns into its opposite, which gives a second hexagram, read as the direction the situation is taking. A moving yang line is called “nine”, a moving yin line “six”. Without a moving line, one keeps to the general judgement.
For Yu, a moving line describes your impulse: boasting, standing firm, hesitating, gathering others, bearing a constraint, or recognising one’s blindness and changing course.
A modern reading, with caution
Today, Yu is often read in connection with a project that excites or a group that is fired up. A careful reading sees in it a double message: enthusiasm is precious when it sets things in motion, and dangerous when it replaces reflection. Asking what sustains it once the emotion fades is more useful than trying to hold it back. The hexagram does not predict the success of the project.
Questions for reflection
- What gives me momentum at the moment?
- Does this momentum rest on something solid, or on the euphoria of the moment?
- What would remain of this project if the celebration stopped?
- Who around me is taking part in this impulse?
Mistakes to avoid
- Boasting of one’s connections or projects before they exist.
- Confusing enthusiasm with a considered decision.
- Waiting for the impulse to come from elsewhere without preparing anything.
- Ignoring the blindness described in the last line.
Names, translations and a reminder
The name “Yu, Enthusiasm” follows one tradition of translation among others. Other translations speak of Joy, Delight, Contentment or Anticipation; the reading of the character 豫 varies between pleasure and preparation. Compare two translations if you can.
A reminder: the I Ching is a book of wisdom and divination, consulted as a tool for reflection, never as a prediction; it does not replace medical, legal, financial or safety advice. This page summarises the text in our own words.
Frequently asked questions
What does hexagram 16 of the I Ching mean?
It is the hexagram of enthusiasm: a joyful impulse that brings people together. It speaks of what makes it fruitful and what makes it misleading.
Is Yu a favourable hexagram?
Its judgement is, but the lines are mixed: the first warns against boasting, the last against blindness.
Why is music associated with this hexagram?
The tradition links the image of thunder rising from the earth with music and festivals, which set groups in motion.
What are the trigrams of hexagram 16?
Kun (Earth) below, inside, and Zhen (Thunder) above, outside.
What is the twin hexagram of number 16?
Number 15, Qian (humility), Humility: in King Wen’s order hexagrams come in pairs, the second being the same figure turned upside down.
Also read
The meanings mentioned belong to tradition and symbolism. They are neither promises of results nor medical advice. Back to The 64 hexagrams of the Yi King.