Yang Metal — 庚

Yang Metal is raw ore and forged steel — metal meant for tools and edges. A Geng day master tends toward decisiveness: strong opinions, clean boundaries, an instinct to cut through what is vague.

In the four pillars, the day stem names the self. With Geng there, the self respects strength — its own and others'. It would rather have an honest fight than a soft ambiguity, and it trusts what survives testing.

Metal belongs to autumn in the Chinese calendar — the season of harvest and clearing. Geng people carry an autumn instinct: finish it, cut it, store what matters, let the rest go.

The shadow is the edge without a handle — sharpness that wounds the wielder first. The reflection is tempering: strength that chooses its moments.