Judgment
The Abysmal repeated. If you are sincere, you have success in your heart, and whatever you do succeeds. Sincerity here means maintaining your essential nature through the trial—as water remains water whether flowing in streams or trapped in pits.
Image
Water flows on uninterruptedly and reaches its goal. Thus the superior man walks in lasting virtue and carries on the business of teaching. K'an doesn't promise safety, only that movement through danger is possible if you don't lose yourself in the descent.
Bene Gesserit Protocol

Dune: The Gom Jabbar Test
Frank Herbert (1965)
In Dune (1965), fifteen-year-old Paul Atreides faces the gom jabbar test: Reverend Mother's poisoned needle (instant death) hovers at his neck while his hand enters a black box generating nerve induction—escalating burns, flesh melting, agony designed to break animal instinct. The test is binary: maintain human consciousness despite unbearable pain, or flinch and die. Danger above, danger below. No escape except through. The Bene Gesserit separate human (conscious control) from animal (pure pain response). Paul endures waves of simulated burning, every fiber screaming to withdraw, the needle waiting. Hexagram 29—The Abysmal (坎), water doubled. Yang line trapped between yin above and below. Consciousness caught between two perils, required to maintain essential nature. Water remains water even in the pit.
Historical Context
- Period
- Zhou Dynasty
- Traditional Use
- Zhou Dynasty texts associate this hexagram with trials by ordeal, situations requiring passage through peril with no safe alternative.
Lines
Line 1: 習坎入于坎窞凶
Line 2: 坎有險求小得
Line 3: 來之坎坎險且枕入于坎窞勿用
Line 4: 樽酒簋貳用缶納約自牖終無咎
Line 5: 坎不盈祗既平無咎
Line 6: 係用徽纆寘于叢棘三歲不得凶
Practical Guidance
Transformations
When changing lines appear in a reading, this hexagram can transform into another.
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