White Horse · A blade tempered in the midday fire
Yang Metal — a forged sword. You are seated on the fire energy that controls you — you live with tension and responsibility beneath you.
The stage of washing and dressing. Feeling and appeal stand out here — and so does a mind that ripples more than it settles.
An upright office is seated in your inner room. Principle and standing matter to you, and trust tends to follow.
The stems concealed inside 午 (Horse). A branch is not one single energy — it holds this mixture, in these proportions across a 30-day month.
Metal tempered over fire — this one hardens by going through things rather than around them. The capacity to drive yourself is the strength, and the trap that makes you forget how to stop.
Is Geng Wu actually your day pillar?
The day pillar shifts on solar-term and zi-hour boundaries, so it is not countable by eye. Enter your birth date and the engine computes it in under a minute — free, no account.
Find my day pillar — freeYour day pillar is the stem-branch pair governing the day you were born — Geng Wu (庚午) 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.
White Horse — the image traditionally attached to it is "A blade tempered in the midday fire". Your Day Master 庚 (Yang Metal — a forged sword) sits on 午, the Horse, which carries Fire. In the twelve-stage cycle that position reads as Bathing, and the seated Ten God is Officer.
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.
Same sixty-cycle, different reading of the same characters. 庚午 is romanised Geng Wu from Mandarin and gyeongo from Korean, and Korean saju calls the day pillar ilju (일주). The calculation is identical; the interpretive traditions differ.
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.