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Hexagram 21

Biting Through (Shì Kè)

Upper Trigram Li (Fire) · Lower Trigram Zhen (Thunder)

Judgment

噬嗑:亨。利用狱。

Plain MeaningBiting through the obstruction brings success; it profits to administer justice.

Image (Great Commentary)

雷电噬嗑;先王以明罚敕法。

Line Texts

  • 初九屦校灭趾,无咎。

    Feet in stocks, toes hurt—an early penalty that prevents worse; no blame.

  • 六二噬肤灭鼻,无咎。

    Biting soft flesh so deep the nose vanishes—severe but no blame.

  • 六三噬腊肉,遇毒;小吝,无咎。

    Biting old dried meat and finding poison—slight humiliation, no blame.

  • 九四噬干胏,得金矢,利艰贞,吉。

    Biting gristly meat, gaining a metal arrow—hard, upright persistence brings fortune.

  • 六五噬干肉,得黄金,贞厉,无咎。

    Biting dried meat, gaining yellow gold—steadfast awareness of danger, no blame.

  • 上九何校灭耳,凶。

    Neck in the cangue, ears gone—evil unchecked ends in calamity.

Symbolism

Thunder and lightning: decisively biting through obstruction.

Life Lesson

Remove obstructions decisively; discipline early to prevent worse.

Modern Application

Handle violations and blockers early, firmly and by the rules.

Words of Caution

Small wrongs unpunished grow into great crimes.

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.