Day Master 庚 · Yang Metal

Geng Metal Day Master

Geng is Yang Metal: unrefined, unornamented, and made for one job — cutting what needs cutting. The tradition reads Geng as the most direct stem in the set, and the one most likely to pay for it.

Reviewed November 2026

StemGeng 庚
ElementYang Metal
Classical imageraw iron and the axe
Paired stemXin Metal

The axe: the one who cuts to the point

Classical texts describe Geng as decisive, loyal and structurally minded: a person who wants to know what the rule is, whether it holds, and what happens if you remove it. Raw metal is not subtle. It is honest about its purpose.

The image carries a warning. Iron without a forge is a lump; iron forged carelessly is a weapon with no handle. The tradition therefore reads Geng against fire — something that shapes it — and treats an unshaped Geng as force without judgement.

What the tradition reads as strengths

  • Decisiveness. Geng ends ambiguity, which is often the most useful thing in the room.
  • Loyalty with teeth: Geng defends the people it has chosen, publicly.
  • Comfort with conflict that others avoid.
  • Clear standards, applied to itself first.

Where it goes wrong

These are the same qualities pushed past their useful range. Nothing here is a verdict on a person — it is what the classical texts warn happens when the stem is not well supported or not given anything to work on.

  • Cutting before understanding, then calling the damage honesty.
  • Black-and-white judgement where the situation was grey.
  • Impatience with process, which reads as arrogance to people who need the process.

Work and money

Geng suits roles with clear criteria and real consequences: engineering, surgery, law, military and security, finance, manufacturing, quality, sport. The texts want fire in a Geng chart — a forge, meaning a mentor, a discipline, or a system that makes the blade useful rather than merely sharp.

Relationships

Direct and protective. Geng says the thing, means it, and expects the same in return. The friction is softness: a partner in a hard moment usually needs presence, and Geng's instinct is to solve, fix, or cut the problem out.

Strong or lightly supported — why the same stem reads differently

A Day Master is never read alone. Before anything else, a reader asks whether this stem is supported by the season it was born into, by roots in the branches, and by other stems of the same element. That judgement changes what the stem means in practice:

Supported. Well supported, Geng is a forged blade: decisive without being cruel, able to carry authority and use it sparingly. This is the version the tradition calls an officer.

Lightly supported. Lightly supported, Geng is brittle — sharp, reactive, quick to sever things it will later want back. The remedy is fire and water: shaping and cooling, or in life, discipline and time before answering.

This site prints the strength it calculated and the score behind it, rather than a verdict with no working shown. If a chart says lightly supported, that is a statement about the chart's balance — not a weaker person.

The season you were born in

Autumn births put Geng in its own season and make it formidable, sometimes dangerously so. Summer Geng is being worked by fire and is usually the most useful version. Winter Geng is cold and needs warmth to avoid hardening into pure severity.

The month branch decides the dominant element of the whole chart, which is why two people with the same Day Master can read very differently. It is also why a BaZi month starts at a solar term rather than on the 1st — the calendar the tradition uses is the sun's, not the office's.

Geng and Xin: the same element, opposite polarity

Xin is the other Metal stem: jewellery and needle rather than axe. Geng cuts; Xin discriminates. Geng is trusted with force, Xin with taste — and Xin is far more easily wounded.

Reading the pair together is the fastest way to see what polarity actually does in a chart: Xin Metal Day Master.

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