Geng Xu·庚戌·Gyeongsul
The Geng Xu day pillar — written 庚戌 in hanja, read 경술 (Gyeongsul) in Korean Saju — is one of the sixty combinations of Heavenly Stem and Earthly Branch that mark a day in the sexagenary cycle. Everything below is read from that pillar’s own structure: its hidden stems, its Ten Gods, and its place in the twelve-stage life cycle.
Personality性
Geng Xu is Yang Metal — 庚, the ore-hard, unforged blade — sitting on a branch that generates it: 戌 Xu is Earth, and 'Metal generated by Earth' is the pillar's whole architecture in one phrase. The branch's primary hidden stem is 戊 Yang Earth, holding 18 of the branch's 30 days and expressing as 偏印 Indirect Resource toward the Day Master — the dominant force of this pillar. Indirect Resource built this deep gives Geng Xu people a self-contained mind: they trust knowledge they gathered themselves — unconventional, specialist, or private — over what an institution certified. Underneath that, a residual 辛 Yin Metal (9 days) reads as 劫財 Rob Wealth, a same-element sibling-self influence that hardens the temperament into something territorial and competitive, unwilling to concede ground to rivals. A trace 丁 Yin Fire (3 days) contributes 正官 Direct Officer — only 3 days of weight, so it is a thin undercurrent of duty and propriety rather than a governing trait, but it is there, waiting to be activated. The Day Master itself sits at 衰 Decline in this branch: strong, but past the raw combative peak of a stage like Emperor. The result is restrained power — dignified, economical with effort, more interested in consolidating what it holds than conquering new ground.
Career職
The dominant 偏印 Indirect Resource points this pillar toward self-directed expertise rather than credentialed hierarchy: technical trades, engineering, specialist consulting, craftwork tied to Metal, or any field where mastery is proven by output rather than pedigree. The residual 劫財 Rob Wealth favors work with built-in rivalry — freelance practice, sales, or trades where success is measured against direct competitors — since this pillar is comfortable contending for position. The trace 正官 Direct Officer, though only 3 days of weight on its own, matters because both of Xu's branch relations gather toward Fire: the 三合 three harmony with 寅 and 午 gathers Fire, and the 六合 six harmony with 卯 also transforms to Fire. Fire is this Day Master's Officer element, so circumstance and the right colleagues can pull a Geng Xu person into real institutional authority even though the branch alone only hints at it. Decline stage argues against chasing early aggressive expansion; this pillar performs best in consolidative, senior, or advisory positions — refining and maintaining rather than founding.
Wealth財
None of Xu's three hidden stems is a wealth god — no 正財 Direct Wealth, no 偏財 Indirect Wealth appears anywhere in the branch. That absence is the wealth story here: money is not generated directly by this pillar's own structure, only mediated through it. Income tends to arrive via the resource channel — skill, expertise, or independent means converted into earnings — rather than through commerce or venture. The residual 劫財 Rob Wealth adds a second complication: wealth is prone to being shared, contested, or actively taken by peers and rivals, so joint ventures and partnerships around money carry more friction than they promise. Without a wealth god of its own, this pillar tends to guard resources rather than aggressively grow them, and its risk is losing ground to competitors rather than losing to bad investment.
Love & Compatibility緣
In relationships, Geng Xu brings the same qualities that define the chart: quiet, seasoned strength rather than heat, and a guardedness that comes directly from a personality built on Indirect Resource — self-sufficient, privately-run, slow to open its interior life to a partner. The residual Rob Wealth streak can turn a partner into an unconscious rival, especially over shared resources or attention, making open sharing harder than it should be. The trace Direct Officer supplies a small, real capacity for commitment and duty, but at only 3 days of weight it is not enough on its own to soften the self-protective core. What this pillar finds difficult is emotional transparency and easy merging; what it offers instead is loyalty that does not need to be renewed by validation, because its sense of self was never dependent on the relationship to begin with.
Health身
The pillar's element mix is heavy on Metal and Earth and thin on everything else: Yang Metal stem, an Earth branch whose primary stem is also Yang Earth, a residual Yin Metal, and only a trace of Yin Fire — no Water at all. In five-element terms this concentration sits with the Lung and Large Intestine (Metal) and Stomach and Spleen (Earth) systems, and the near-absence of Water to moisten so much Metal and dry Earth suggests a constitutional tendency toward dryness — in the lungs, skin, or joints — and toward digestive heaviness rather than fluidity. The trace Fire is too slight to properly temper the Metal's hardness, so tension can accumulate rather than discharge; regular physical outlet does more for this constitution than rest alone. Decline stage means real but not inexhaustible reserves — a constitution that holds up well under steady use but depletes if pushed past its pace.
Best & Worst Pairings合
The strongest matches are 丁卯 Ding Mao, 乙卯 Yi Mao, and 己卯 Ji Mao, each sharing the branch 卯 Mao, which stands in 六合 six harmony with Xu and transforms the pairing toward Fire — precisely the element that sits as a mere 3-day trace inside Xu's own hidden stems. All three arrive at the 胎 Embryo stage toward Geng, a formative rather than confrontational position, meaning these unions tend to grow the person rather than test them. 丁卯's stem is 正官 Direct Officer, reinforcing the discipline already latent in the chart; 乙卯's stem is 正財 Direct Wealth, supplying the wealth structure this pillar otherwise lacks entirely; 己卯's stem is 正印 Direct Resource, adding an orthodox, legitimate resource channel alongside the unconventional Indirect Resource base. The worst matches are 丙辰 Bing Chen, 甲辰 Jia Chen, and 戊辰 Wu Chen, all sharing the branch 辰 Chen, which stands in direct 沖 clash with Xu — two Earth storage branches destabilizing each other. 丙辰 carries 七殺 Seven Killings, unmediated authority pressure the chart's thin Officer trace cannot soften, making it the harshest of the three. 甲辰 carries 偏財 Indirect Wealth, so the clash unsettles wealth just as it might arrive. 戊辰 carries 偏印 Indirect Resource — the same god that dominates Xu's own chart — but rather than reinforcing it, the clash destabilizes the very resource base Geng Xu depends on most.