Gui Si·癸巳·Gyesa
Written by DK
The Gui Si day pillar, 癸巳 in hanja and 계사 (Gyesa) in Korean Saju, is a yin Water day master on a Fire branch. Of the 24,101 癸 charts this site has measured, 4,015 fall on a 癸巳 day. Those read as strong in 19.7 per cent of cases, weak in 65.0 and balanced in 15.3. Taking every 癸 day together the split is 31.2 per cent strong, 50.5 weak and 18.3 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 巳 holds, and what each of those stems is to a 癸 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 癸 |
|---|---|---|---|
| 丙 Yang Fire | 正氣 primary | 16 of 30 | 正財 Direct Wealth |
| 庚 Yang Metal | 中氣 middle | 7 of 30 | 正印 Direct Resource |
| 戊 Yang Earth | 餘氣 residual | 7 of 30 | 正官 Direct Officer |
In the twelve-stage cycle a 癸 day master on 巳 sits at 胎 Conception.
Personality性
Gui Si pairs the Yin Water Day Master with Si, a Fire branch — the relation between stem and branch is control: Water controls Fire. Rather than sitting on a branch that produces or shelters it, Gui is planted on the very thing it must restrain, and no Water hidden stem exists in Si to give it a home. That rootlessness is why this pillar's twelve-stage position is Conception (胎): not the exhaustion of Death nor the fullness of Peak, but the stage of something newly forming. The person carries a quality of being perpetually early in becoming themselves — adaptable, still assembling footing, more at ease with growth than with a finished identity. What that forming self reaches for shows in the hidden stems. The primary qi, Bing (Yang Fire) at sixteen of thirty days, reaches the Day Master as Direct Wealth (正財) — the chart's single strongest influence, and a pull toward tangible, earned result. Behind it, seven days each of Geng (Yang Metal) as Direct Resource (正印) and Wu (Yang Earth) as Direct Officer (正官) add a respect for credentials and hierarchy. All three are the Direct register of their Ten God, not the sharper Indirect or Seven Killings forms — Gui Si works through legitimate channels. The composite: practical, fair-minded, quietly disciplined, a self still under construction and built out of work rather than declaration.
Career職
Direct Wealth dominant, Gui Si suits work measured in countable output — commerce, finance, administration, any role where value delivered can be exchanged fairly. The residual Direct Officer favors structured institutions over freelance improvisation: defined authority, clear reporting lines. Direct Resource supplies a credentialing instinct — exams, licenses, formal training treated as real ballast rather than ornament. The Conception stage cautions against reading this as built for command from the start; it favors incubation over inheritance — founding, early-stage building, apprenticeship, work still taking shape that the person can grow into, rather than an already-mature seat of power.
Wealth財
Wealth is the pillar's center of gravity: Direct Wealth (正財) is both the overall dominant Ten God and the branch's primary qi. 正財 describes wealth built through steady, fair exchange — salary, trade, methodical accumulation — rather than windfall or speculation. Support is present, not assumed: Direct Resource backs it with training, Direct Officer backs it with standing, so earning sits inside a structure of legitimacy rather than appetite. What tempers this is the Day Master's own position: in Conception, with no rooting Water stem anywhere in the branch, financial confidence is usually assembled over time rather than possessed outright early. The aptitude is real; the mastery is built.
Love & Compatibility緣
Gui Si brings the Yin Water temperament proper to this stem — quiet, absorptive, more attentive than assertive — complicated by having to continually work against its own seat, since Water controls the Fire it sits on. The result is steady, understated influence: capable management of a partner's or household's practical affairs without needing to be its visible center. The difficulty is stability at the root. Conception means the self a partner meets is still forming, and Gui Si typically needs real, unhurried time before a bond feels settled rather than provisional. Partners who supply grounding are received well; partners who arrive already at full strength, pressing hard from the outset, tend to overwhelm a foundation that has not finished setting.
Best & Worst Pairings合
Gui Si's best matches are Bing Shen (丙申), Geng Shen (庚申), and Wu Shen (戊申), each joined to it by Six Harmony between Si and Shen, a relation that transforms to Water. That transformation supplies, from outside, the rooting element Si's own branch cannot give — grounding a Day Master still in Conception. Each partner also mirrors one of Si's own hidden stems at the stem level: Bing Shen carries Direct Wealth, Geng Shen carries Direct Resource, Wu Shen carries Direct Officer, so each pairing amplifies a different one of the three faculties — earning, credibility, standing — Gui Si already holds in latent form. All three partners sit at the Death (死) stage themselves, a quiet register that does not fight Gui Si's own low-key temperament. The worst matches all carry Hai (亥), which clashes Si directly and breaks the branch rather than supporting it. Ji Hai (己亥) pairs Seven Killings (七殺) with the Peak (帝旺) stage — maximum strength exerting the harshest form of control, clashing the one branch Gui Si depends on while the Day Master is still only at Conception. Xin Hai (辛亥) brings Indirect Resource (偏印) at the same Peak strength, support arriving as unpredictable interference rather than steady backing. Gui Hai (癸亥) doubles the Day Master itself as Friend (比肩), but at Peak strength and in clash — rivalry and duplication rather than partnership, disrupting the very element it shares.