Jia Zi·甲子·Gapja

Written by DK

The Jia Zi day pillar, 甲子 in hanja and 갑자 (Gapja) in Korean Saju, is a yang Wood day master on a Water branch. Of the 24,101 甲 charts this site has measured, 4,015 fall on a 甲子 day. Those read as strong in 38.7 per cent of cases, weak in 38.3 and balanced in 22.9. Taking every 甲 day together the split is 30.7 per cent strong, 49.5 weak and 19.8 balanced.

The figures come from running this site’s engine over every day of the stem from 1950 to 2009, with a birth in Seoul every two hours from two in the morning to ten at night. Midnight is left out: once Seoul’s clock is corrected for its longitude, a midnight birth falls on the day before, which carries a different stem.

Structure藏干

What the branch 子 holds, and what each of those stems is to a 甲 day master. The day counts are the classical weights within a thirty-day month, main stem first.

Hidden stem	Qi	Days of 30	Ten God to 甲
癸 Yin Water	正氣 primary	20 of 30	正印 Direct Resource
壬 Yang Water	餘氣 residual	10 of 30	偏印 Indirect Resource

In the twelve-stage cycle a 甲 day master on 子 sits at 沐浴 Bath.

Personality性

Jia Zi places Yang Wood, the Day Master, directly into a Water branch that produces it — 'Wood generated by Water.' Both hidden stems in 子 are Water: 壬 Ren (Yang Water, residual, 10 of 30 days), reading as 偏印 Indirect Resource, and 癸 Gui (Yin Water, primary qi, 20 of 30 days), reading as 正印 Direct Resource, the pillar's single strongest influence. No Wealth, Officer, Output, or Peer god appears in the branch at all — this is a chart built almost entirely on Resource, fed without being checked or pushed to compete. Where the Day Master sits matters as much as what feeds it. Jia in Zi occupies 沐浴 Bath (목욕), the stage of the infant just washed — alive but unrooted. Classically this stage carries charm and sensitivity alongside restlessness and exposure. With no Earth stem present to bank the water, the doubled Resource saturates rather than simply nourishes: intellectual appetite and idealism that have not yet been asked to hold their ground. The result is an intelligent, absorbent, easily moved temperament whose steadiness has to be built deliberately rather than assumed.

Career職

Both 正印 Direct Resource and 偏印 Indirect Resource point toward work organized around knowledge rather than acquisition — teaching, scholarship, writing, editing, research, or credentialed institutional work, with the Indirect Resource pulling toward unorthodox or self-taught expertise outside any standard curriculum. No Officer god means little natural comfort with rigid hierarchy; no Output god means the drive to produce finished work for its own sake is mediated through mentors or institutions rather than pursued solo. The Bath stage reinforces exploration before settling — several paths or teachers tried before one takes root — and this Day Master does best in fields built for continual renewal, such as research or education, rather than a single fixed post held for life.

Wealth財

Neither 正財 Direct Wealth nor 偏財 Indirect Wealth appears among the hidden stems of 子; the branch is Water and Resource throughout. This is not a chart structurally built for commerce or risk-taking — money is not where its native strength lies. What it has instead is Resource: support, patronage, income earned by teaching or by being taught. Left unmanaged, the doubled Resource can produce a passive stance toward money, an assumption of being provided for that the chart does not itself guarantee. The task, since wealth is not handed to this pillar, is converting learning and reputation into durable assets rather than treating support as income in itself.

Love & Compatibility緣

In relationships this pillar brings the qualities of its dominant god — warmth, receptivity, a mind that absorbs a partner's inner life easily, the mark of a 正印 Direct Resource temperament built around nurture given and received. The Bath stage adds real charm along with its difficulty: an unrooted, still-forming quality that can read as elusive, and a classical association with romantic restlessness. With no Wealth or Officer god to anchor the Day Master in claiming or being claimed, commitment is less instinct than deliberate choice; the natural pull is toward being carried by feeling rather than by structure, and this pillar often does best with a partner who supplies the groundedness the chart itself lacks.

Best & Worst Pairings合

All three best matches — 己丑 Ji Chou, 癸丑 Gui Chou, and 辛丑 Xin Chou — work through the same mechanism: the 六合 Six Harmony between 子 Zi and 丑 Chou, transforming to Earth, with each partner at 冠帶 Cap, the stage of a young adult coming into readiness. The harmony supplies exactly what Jia Zi's own branch lacks — ground — steadying the Bath stage's raw, unrooted quality. The three differ in which Ten God arrives with that ground: 己丑 Ji Chou brings 正財 Direct Wealth, supplying the wealth relationship this pillar cannot generate alone; 癸丑 Gui Chou brings a second 正印 Direct Resource, deepening the nurture but now anchored; 辛丑 Xin Chou brings 正官 Direct Officer, supplying structure this chart otherwise lacks. The worst matches all run through 沖 Clash: 庚午 Geng Wu, 甲午 Jia Wu, and 戊午 Wu Wu each set 子 against its direct opposite 午 Wu, a Water-against-Fire confrontation, with the Day Master landing at 死 Death, its lowest ebb in the twelve-stage cycle. The stem carried into each clash decides its flavor: 庚 Geng arrives as 七殺 Seven Killings, an unmediated Metal attack on Wood, making 庚午 Geng Wu the sharpest; 甲 Jia arrives as 比肩 Friend, turning the clash into rivalry between mirrored equals; 戊 Wu arrives as 偏財 Indirect Wealth, so conflict here centers on money rather than authority.