Xin Si · 辛巳
Xin Si pairs a Yin Metal Day Master with 巳 (the Snake), a Fire branch. If this is your day pillar, the pairing below describes tendencies worth observing — not a verdict.
The Day Master on top
Yin Metal · 辛 — The classical image for 辛 is refined metal — the jewel, the fine blade: value produced by removing everything that is not the point. A Yin Metal Day Master tends to notice flaws others miss, and to be unable to un-notice them.
Read the full profile →The branch beneath — your spouse palace
In a day pillar, the branch is read as the spouse palace: the texture of close partnership. 巳 (the Snake) carries these hidden stems, each read as a relationship between that stem and your Day Master:
丙
Authority
Authority with structure — rules, reputation, duty, and roles that hold you accountable.
庚
Rival Wealth
Opposite polarity, same element — close competition, shared resources, sharp give-and-take.
戊
Direct Resource
Direct resource — care, credentials, protection, and knowledge that steadies the self.
Na Yin
The Na Yin of Xin Si is 白蜡金 — "White-Wax Gold". Na Yin is a poetic sixty-fold naming of the pillars, used as a secondary texture rather than a primary verdict.
Stage of the cycle
Dormant — Quiet / dormant — the Day Master’s force is largely offline in this spot.
Void branches (Xun Kong)
Charts anchored on 辛巳 treat 申酉 as "void" — branches whose signals are read as weakened or delayed rather than absent.
Is Xin Si actually your day pillar?
The day pillar comes from your exact birth date — and near midnight, from true solar time. Calculate it instead of guessing.
As with everything on Truenoon, this page describes observable tendencies, not a verdict on who you are.