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Hexagram 16

Enthusiasm (Yù)

Upper Trigram Zhen (Thunder) · Lower Trigram Kun (Earth)

Judgment

豫:利建侯行师。

Plain MeaningEnthusiasm: it profits to install helpers and set armies moving—act with the momentum.

Image (Great Commentary)

雷出地奋,豫;先王以作乐崇德,殷荐之上帝,以配祖考。

Line Texts

  • 初六鸣豫,凶。

    Enthusiasm that boasts aloud—misfortune.

  • 六二介于石,不终日,贞吉。

    Firm as a rock, acting before the day ends—steadfast fortune.

  • 六三盱豫,悔。迟有悔。

    Fawning enthusiasm brings regret; hesitation, too, brings regret.

  • 九四由豫,大有得。勿疑。朋盍簪。

    The source of enthusiasm—great gains; do not doubt; friends gather like hair to a clasp.

  • 六五贞疾,恒不死。

    A persistent ailment, yet never fatal—steadfastness endures.

  • 上六冥豫,成有渝,无咎。

    Deluded enthusiasm—if changed in time, no blame.

Symbolism

Thunder bursting from the earth: joyous, timely movement.

Life Lesson

Move with the times to achieve much, but guard against indulgence and vanity.

Modern Application

A moment to launch and inspire—seize it decisively, avoid complacency.

Words of Caution

Boastful or deluded joy turns to trouble—keep moderation.

The opposite hexagram flips every line, the reverse turns it upside down, and the nuclear hides in the inner lines — read them side by side for a fuller picture.