Yang Metal over Earth · Hairpin metal

Geng Xu — pillar 47 of 60

An axe on a dry hill. Hard metal on hard earth: conviction, friction, and very little give on either side.

Reviewed November 2026

← All sixty pillars

Pillar庚戌 — Geng Xu (47 of 60)
StemGeng 庚 — Yang Metal
BranchXu 戌 — the Dog, Earth
Hidden stemsWu 戊, Xin 辛, Ding 丁
StageDecline (6 of 12)
NayinHairpin metal
RelationBranch feeds the stem

What the pair is doing

The branch produces the stem's element — support that arrives from underneath, usually read as backing, learning or a source of strength.

The stem is yang metal and the branch is earth, so this is the resource relation. Inside the branch sit the hidden stems Wu, Xin, Ding — which is why a Xu branch is never only earth. Those hidden stems are what a reader checks when the surface element does not explain what the chart is doing.

The stage: Decline

On the twelve-stage cycle, Geng meets Xu at Decline — stage 6 of twelve. The stages run from Birth at the element's own season through Peak at its strongest, then down through Decline, Illness, Death, Tomb and Severed before Conception and Nurture bring it back. Decline is a qualitative marker, not a score: it says how freely the stem can act at this branch, not how strong the person is.

The nayin layer

The classical sound-element for this pair is hairpin metal. Nayin is a separate sixty-item list that predates the stem-and-branch reading most charts use today; it is quoted for its image rather than its arithmetic. Treat it as a second description of the same object, not as a fifth element to be balanced.

Years with this pillar

Every sixty years the year pillar returns to Geng Xu. In the current window that means 1910, 1970, 2030, 2090. If you were born in one of those years, this is your year pillar — but not necessarily your Day Master, which comes from the day, not the year.

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