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Day Pillar 20 of 60 · Nayin Willow Wood

Gui Wei (癸未) Day Pillar — Yin Water on the Goat

The Gui Wei day pillar pairs the Gui day master (Yin Water) with the Wei branch (Earth, the Goat). Below: the computed facts, what the seat relation and twelve-stage position mean structurally, the nayin gloss, the classical reading of the spouse palace, and an instant lookup for your own pillar.

Computed facts (engine-verified)

This page is generated from the engine, not hand-written; structural facts reconcile against the methodology page.

Day master癸 Gui · Yin Water
Day branch未 Wei (Goat) · Earth
Hidden stems己 Ji (Seven Killings, main qi); 丁 Ding (Indirect Wealth, middle qi); 乙 Yi (Eating God, residual)
Stage of the stem hereTomb (9 of 12)
NayinWillow Wood · 杨柳木 (shared with Ren Wu 壬午)
Seat relationBranch controls stem (jie jiao) — traditional term: 截脚

How Gui sits on Wei

The branch controls the stem: Earth bears down on Water, so the Gui day master sits under pressure from its own base. The traditional name is 截脚 (jié jiǎo, "cutting the heel") — the seat pushes back against the self. Structurally this means the day master cannot take its own ground for granted; it is a pillar where the base tests the person, and the full chart shows what resources answer that test.

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Nayin: Willow Wood

Willow Wood (杨柳木): willow — supple wood that bends rather than resists. The classical reading favors adaptability and re-rooting.

The spouse palace (day branch)

In the spouse palace this is an Influence (官杀) configuration: the classical reading treats the partner-side branch as a source of structure, accountability, or pressure on the Gui day master. The structural point — stated by the tradition, not by this site — is that intimacy here comes with terms attached. Whether those terms read as support or as strain depends on the other seven characters, which is why this page stops at structure.

The main qi 己 (Ji, Seven Killings) defines the palace's classical group: Influence. Middle/residual tenants: Ding (Indirect Wealth), Yi (Eating God).

A note on what this page deliberately does not do: the internet is full of "60 personality types" tables that assign a fixed character to each day pillar. This site rejects that framing. A day pillar is a structural position — who sits where, on what kind of ground, with which hidden tenants. The same pillar reads differently under a different month command, and no meaningful judgement exists without the other six characters. Where the tradition offers a reading, it is labelled as the tradition's; this site's own contribution is that every number and term on this page is computed, versioned, and checkable against the methodology page.

Find your own day pillar

Birth date alone is enough — the day pillar never needs a birth time. The calculation runs in your browser; nothing is sent anywhere.

Frequently asked

What is the Gui Wei (癸未) day pillar?
The Gui Wei day pillar pairs the Gui stem (Yin Water) with the Wei branch (Earth). Its computed facts: hidden stems Ji (Seven Killings), Ding (Indirect Wealth), Yi (Eating God), the Gui stem at the Tomb stage on this branch, seat relation "undefined", and nayin Willow Wood (杨柳木).
How do I find my own day pillar?
Use the calculator on this page (birth date is enough — the day pillar does not need a birth time) or the full chart calculator. Your day pillar is the third pillar of the four; each of the sixty has its own page on this site with the same computed structure.
Is the Gui Wei day pillar good or bad?
Neither, on its own. The seat relation (undefined) and the Tomb stage describe position and flow, not fortune. A meaningful reading needs the month command and the other six characters — any source that grades pillars as lucky or unlucky is simplifying past what the system itself claims.
What does the nayin Willow Wood mean?
Nayin (杨柳木) is a two-thousand-year-old classification that gives each PAIR of pillars a symbolic element-image — for Gui Wei it is "Willow Wood", shared with its partner pillar Ren Wu (壬午). It is a classical gloss layer, published here alongside the structural facts, never instead of them.

Nearby pillars

The other five pillars sharing this day master (Gui):

Gui You · Gui Si · Gui Mao · Gui Chou · Gui Hai

Ren Wu ←  ·  → Jia Shen

Reference index

Every enumerable component of ba zi has its own page here. Each page is computed by the same engine and can be checked item by item — none of it is a personality table.