Xin Si 辛巳
White Snake · Platinum refined within the fire
Yin Metal — a polished jewel. You are seated on the fire energy that controls you — you live with tension and responsibility beneath you.
Quietly settling. The seat of concentration that digs one well deep.
An upright office is seated in your inner room. Principle and standing matter to you, and trust tends to follow.
The stems concealed inside 巳 (Snake). A branch is not one single energy — it holds this mixture, in these proportions across a 30-day month.
Platinum refined inside fire — the polish comes out under pressure rather than in comfort. Standards run high and hardest on yourself, so perfectionism is both the asset and the fatigue.
Save the White Snake card to PinterestFrequently asked
How do I know if I have the Xin Si day pillar?
Your day pillar is the stem-branch pair governing the day you were born — Xin Si (辛巳) in this case. It rotates every day through a cycle of sixty, and the boundaries depend on solar terms and the 11pm zi-hour rule, so it is not something you can count by eye. Enter your birth date in our free reading and the engine computes it directly.
What is the Xin Si day pillar like?
White Snake — the image traditionally attached to it is "Platinum refined within the fire". Your Day Master 辛 (Yin Metal — a polished jewel) sits on 巳, the Snake, which carries Fire. In the twelve-stage cycle that position reads as Rest, and the seated Ten God is Officer.
Does my day pillar tell me my whole chart?
No. The day pillar is two characters out of eight — your core axis, not the whole picture. The year, month and hour pillars, the balance of the five elements, and your decade luck all have to be laid on top before a reading means much. Treat a day-pillar page as the doorway, not the room.
Why is it called Jia Zi in Chinese and something else in Korean?
Same sixty-cycle, different reading of the same characters. 辛巳 is romanised Xin Si from Mandarin and sinsa from Korean, and Korean saju calls the day pillar ilju (일주). The calculation is identical; the interpretive traditions differ.
Other pillars with the same Day Master (辛)
Other pillars seated on the Snake (巳)
The twelve-stage position, seated Ten God and hidden stems are computed by the Ioreum deterministic engine (ruleset ioreum-2026.07). The reading itself is interpretation from the day-pillar tradition, not verified science — we always tell you which part is calculation and which part is tradition.