I Ching Hexagram 16 · Yu Hexagram

Hexagram Information

• Hexagram Number: Hexagram 16
• Hexagram Name: Yu
• Hexagram Image: ☳ ☷ (Thunder over Earth)
• Binary Representation: 010001
• Hexagram Quality: Auspicious. In accord with Heaven and responsive to the times, all things flourish. Favorable for career and relationships, but one should remain mindful of danger in times of peace.

• Primary Hexagram: Hexagram 16, Yu
• Nuclear Hexagram: Hexagram 39, Jian
• Inverse Hexagram: Hexagram 9, Xiao Chu
• Paired Hexagram: Hexagram 15, Qian

Yu symbolizes thunder bursting forth from the earth. The spring thunder awakens all things. One should follow Heaven and respond to the time, while enjoying pleasure with moderation.

What This Hexagram Says

Yu. It is favorable to establish feudal lords and to march armies.

The Hexagram Yu is favorable for enfeoffing rulers, founding states, and mobilizing armies. Acting in accord with Heaven and the times brings good fortune in all things, yet one must remain vigilant in peace and must not become addicted to sensual pleasures.

The Great Image and Core Spirit

The Image says: Thunder comes forth from the earth: Yu. The ancient kings, in accordance with this, made music to honor virtue, and with splendid offerings presented them to the Supreme Deity, joining them with the ancestral spirits.

The upper trigram Zhen is Thunder, arousing movement and vigor; the lower trigram Kun is Earth, yielding and bearing all things with depth. A ruler should act in harmony with the times, proceed in an orderly way, delight in virtue, and attribute honor to Heaven and the ancestors.

• Symbolism: following Heaven and responding to the times, the stirring of spring thunder, and the flourishing of all things
• Structure: Zhen above, Kun below; movement with compliance, first movement and then accord
• Keywords: timeliness, joy, caution against indulgence, diligent effort

The Hexagram Yu emphasizes: move in season, remain vigilant in times of peace, and keep joy within bounds. The noble person should follow Heaven, take delight in virtue, and guard against sinking into sensual indulgence. Only then can one advance steadily.

The Progression of the Six Lines

1. Initial Six: Crying out in enthusiasm brings misfortune

   Excessive pleasure causes one’s resolve to fade and easily invites danger. Philosophical meaning: uphold what is right, restrain extravagance, and guard against becoming lost in amusement.

2. Six in the Second Place: Firm as a rock; not waiting a whole day. Constancy brings good fortune

   Danger can be resolved before long, and this is favorable. Philosophical meaning: by holding to the center and acting with caution, one receives blessings.

3. Six in the Third Place: Looking upward in enthusiasm brings regret

   Laziness and idle pleasure will lead to remorse. Philosophical meaning: when one is in an improper position yet covets ease and comfort, regret will come sooner or later.

4. Nine in the Fourth Place: From enthusiasm comes great gain. Do not doubt. Friends gather together like a clasped hairpin

   Advancing brings benefit, and friends offer support. Philosophical meaning: treat others through the right way, and many people will respond in harmony.

5. Six in the Fifth Place: Constancy in illness, yet enduring and not dying

   One is in difficulty, yet it does not lead to destruction. Philosophical meaning: by holding to the center and keeping one’s household in order, and by complying with the Way of Heaven, one may remain safe and unharmed.

6. Top Six: Darkened enthusiasm. Though completion brings change, there is no blame

   When joy reaches its extreme, decline approaches. Philosophical meaning: if one recognizes excessive pleasure in time and reforms oneself, great harm can be avoided.

Guidance for Real Life

Keywords and overall guidance:

Things may go as wished and remain peaceful, and help may come from elders, but one must guard against excessive indulgence.

Career and finances:

Work and undertakings can proceed smoothly and lead to success, but one must follow the trend of the times, strive diligently, and not become lazy or pleasure-seeking.

The right moment has arrived. Act boldly, strengthen cooperation, and lasting benefit can be gained.

Love and relationships:

Romance and marriage can go well, but do not be rash or sink into pleasure. They must be managed with steadiness and care.

Physical and emotional state:

Pay attention to balance in body and mind. Do not give yourself over to pleasure, and guard against mental and physical fatigue.

The above content is for everyday self-care reference only; if physical or emotional discomfort persists or worsens, please consult a qualified medical or mental health professional first.

One-Sentence Reminder

The way of Hexagram Yu lies in following Heaven and responding to the times, remaining vigilant in peace, keeping joy within bounds, and moving forward steadily; by taking delight without indulgence, great accomplishment becomes possible.