Xin Si·辛巳·Sinsa
The Xin Si day pillar — written 辛巳 in hanja, read 신사 (Sinsa) 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
Xin Si places Yin Metal — the metal of jewelry and finished ornament rather than raw ore — directly on Si, a branch ruled by Fire. The stem-to-branch relation is "controlled by": Metal answers to Fire here, and since Si's primary qi is Bing (Yang Fire, 16 of 30 days), expressing as 正官 Direct Officer toward the Day Master, that control arrives as structured authority rather than raw pressure. This is the pillar's dominant current: a need to be correct, an instinct for hierarchy and propriety, discomfort with disorder. Two secondary hidden stems, each holding 7 of 30 days, add texture. Geng (Yang Metal) expresses as 劫財 Rob Wealth, a peer-self that shares the Day Master's element without deferring to it — a quiet competitiveness beneath the surface obedience. Wu (Yang Earth) expresses as 正印 Direct Resource, generating Metal and offering a channel of support — study, mentorship, protection — that softens the direct clash between Fire and Metal. The twelve-stage placement is Death (死): Xin Metal, seated in its own day branch, sits in the stage associated with withdrawal, transformation, and interior processing rather than assertive vitality. This is a reading of temperament, not longevity. The Xin Si person favors composure over display, works through problems privately rather than acting on impulse, and often reads as understated or cool to people expecting Metal's usual sharpness to announce itself. What discipline this pillar carries, it carries quietly.
Career職
With 正官 Direct Officer dominant, Xin Si suits work inside a defined structure — law, regulation, administration, quality assurance, licensing — anywhere correctness is the measure of good work. The Officer's steady 16-day claim means external standards organize this person rather than merely constrain them; they do well where rules are clear and badly where they are absent. Because the Day Master sits in Death here, the better fits are contemplative or precision-based rather than front-facing: editing, auditing, technical craft, research — refinement work suited to Xin Metal's nature as a worked material rather than ore. The residual 劫財 Rob Wealth (Geng) adds an undertone of competitiveness that surfaces in peer-ranked settings — certification ladders, sibling businesses — without becoming the pillar's main engine.
Wealth財
No Wealth Ten God — 正財 Direct Wealth or 偏財 Indirect Wealth — appears among Si's hidden stems, and the absence is itself the reading: money is not structurally central to this pillar. Earning tends to follow from position and correctness (Direct Officer) or from study and credentials (Direct Resource) rather than direct commercial pursuit. What does touch the wealth axis does so uncomfortably: 劫財 Rob Wealth describes resources as shared or contested with a peer, so joint accounts, inheritance, and partnerships carry more friction than in a chart with a clean Wealth god of its own. Xin Si tends to accumulate steadily through salaried, rule-bound work and stays wary of ventures requiring open competition for gain.
Love & Compatibility緣
Xin Si brings to relationships the same demand for correctness and reliability that Direct Officer conditions elsewhere in the chart — a wish for a partner who meets a standard. But the Death-stage placement keeps the emotional register understated: feelings run deep and are held rather than performed, which can read as coolness to a partner expecting visible warmth. The residual 正印 Direct Resource shows real capacity to be nourished by a partner who teaches, supports, or protects, and this person often opens up faster in that dynamic than in one built on excitement alone. The residual 劫財 Rob Wealth is the harder note: it can surface as quiet rivalry over attention or capability, and Xin Si does best with a partner who does not turn shared life into competition.
Health身
The core constitutional tension is structural: Yin Metal sits on a branch whose primary qi (Bing Fire, 16 days) is the element that controls Metal outright. In five-element terms this maps to heat pressing on Metal-associated systems — lungs, skin, respiratory tract — with a tendency toward dryness, inflammation, or nervous depletion under sustained stress. The Death stage compounds this, describing lower raw stamina at this placement; Xin Si constitutions run on precision and pacing rather than force, and fatigue accumulates rather than crashes suddenly. The residual 戊 Direct Resource mitigates: Earth generates Metal, so this hidden stem offers a buffering channel — rest, study, quiet routine — that intercepts some of Fire's pressure before it reaches the Day Master directly.
Best & Worst Pairings合
Xin Si's best matches all carry the branch Shen (申), forming a Six Harmony (六合) with Si that transforms toward Water, softening the native Fire-controls-Metal tension. All three land at 帝旺 (Prosperity), the peak-vitality stage, balancing Xin Si's quieter Death-stage temperament with real momentum. 丙申 Bing Shen brings 正官 Direct Officer, reinforcing the same disciplined authority already dominant in the chart, now through a harmonious branch instead of a controlling one. 戊申 Wu Shen brings 正印 Direct Resource, doubling the supportive influence Xin Si only holds in trace. 甲申 Jia Shen brings 正財 Direct Wealth, supplying through partnership the one Ten God missing from Xin Si's own hidden stems. The worst matches all carry Hai (亥), which clashes (沖) with Si and unsettles the branch anchoring the Day Master. 丁亥 Ding Hai adds 七殺 Seven Killings, an unchecked version of the control Direct Officer otherwise expresses in orderly form. 辛亥 Xin Hai brings 比肩 Friend, doubling the peer rivalry already latent in Xin Si's Rob Wealth into open competition. 己亥 Ji Hai brings 偏印 Indirect Resource, a conditional, less stable version of the support Xin Si draws on elsewhere. All three sit at 沐浴 (Bathing), a stage of exposure and restlessness that sharpens the clash rather than settling it.