癸

About

癸 (Guǐ) is the 10th of the 10 Heavenly Stems (天干) in BaZi — Yin Water. Season: Late Winter · Direction: North · TCM organ: Kidneys / Bladder. Combines with 戊 (戊癸合火 — whether it fully transforms depends on chart context). Produces 甲乙; controls 丙丁.⁠‌​​‌‌​​​‌​​​‌​‌​‌​​‌​‌‌​‌‌​​​‌​‌‌‌​​‌‌​‌‌‌​​‌‌‌‌‌‌​​‌‌​‌‌‌​​‌​​‌‌‌​‌​​‌​‌‌​​‌‌‌‌‌‌​​‌​​​‌‌​‌​​‌​‌‌​​‌‌‌​‌‌​​‌​​​⁠

癸 is Yin Water — rain, dew, mist and spring water: the gentlest stem, and the last of the ten. Classical imagery gives it patience and pervasiveness — water that asks no attention yet reaches everything, nourishing quietly from below. It is associated with intuition, subtlety and endurance. Its combination partner is 戊 (戊癸合火).⁠‌​​‌‌​​​‌​​​‌​‌​‌​​‌​‌‌​‌‌​​​‌​‌‌‌​​‌‌​‌‌‌​​‌‌‌‌‌‌​​‌‌​‌‌‌​​‌​​‌‌‌​‌​​‌​‌‌​​‌‌‌‌‌‌​​‌​​​‌‌​‌​​‌​‌‌​​‌‌‌​‌‌​​‌​​​⁠

Key Attributes

Element

Water

Polarity

Yin

Season

Late Winter

Direction

North

Organ (TCM)

Kidneys / Bladder

Combines with

戊 Wù

In a chart, this means…

In a chart, 癸 is traditionally read as quiet penetration: perceptive, adaptable, influencing situations softly and over time — the rain that carves stone. Its classical caution is diffuseness: mist has no edges. Whether depth or drift prevails depends on the chart as a whole.⁠‌​​‌‌​​​‌​​​‌​‌​‌​​‌​‌‌​‌‌​​​‌​‌‌‌​​‌‌​‌‌‌​​‌‌‌‌‌‌​​‌‌​‌‌‌​​‌​​‌‌‌​‌​​‌​‌‌​​‌‌‌‌‌‌​​‌​​​‌‌​‌​​‌​‌‌​​‌‌‌​‌‌​​‌​​​⁠

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