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Day Pillar 14 of 60 · Nayin Ravine Stream Water

Ding Chou (丁丑) Day Pillar — Yin Fire on the Ox

The Ding Chou day pillar pairs the Ding day master (Yin Fire) with the Chou branch (Earth, the Ox). 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丁 Ding · Yin Fire
Day branch丑 Chou (Ox) · Earth
Hidden stems己 Ji (Eating God, main qi); 癸 Gui (Seven Killings, middle qi); 辛 Xin (Indirect Wealth, residual)
Stage of the stem hereTomb (9 of 12)
NayinRavine Stream Water · 涧下水 (shared with Bing Zi 丙子)
Seat relationStem generates branch (xie) — traditional term: 泄

How Ding sits on Chou

The stem generates the branch: Fire flows into Earth, so the Ding day master sits on ground that continuously draws its output. Traditional wording calls this 泄 (xiè, "draining") — the self is spent into its own base. Again this is a statement of flow, not of fortune: the day master's energy has a standing outbound channel right under it, and the rest of the chart decides whether that channel is a liability or a productive one.

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Nayin: Ravine Stream Water

Ravine Stream Water (涧下水): water running low between cliffs — modest volume, constant direction.

The spouse palace (day branch)

In the spouse palace this is an Output (食伤) configuration: the classical reading treats the partner-side branch as the place where the Ding day master expresses rather than absorbs. The structural point — stated by the tradition, not by this site — is that intimacy here runs through expression and making. Whether that lands well in an actual relationship depends on the other seven characters, which is why this page stops at structure.

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

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 Ding Chou (丁丑) day pillar?
The Ding Chou day pillar pairs the Ding stem (Yin Fire) with the Chou branch (Earth). Its computed facts: hidden stems Ji (Eating God), Gui (Seven Killings), Xin (Indirect Wealth), the Ding stem at the Tomb stage on this branch, seat relation "undefined", and nayin Ravine Stream Water (涧下水).
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 Ding Chou 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 Ravine Stream Water mean?
Nayin (涧下水) is a two-thousand-year-old classification that gives each PAIR of pillars a symbolic element-image — for Ding Chou it is "Ravine Stream Water", shared with its partner pillar Bing Zi (丙子). 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 (Ding):

Ding Mao · Ding Hai · Ding You · Ding Wei · Ding Si

Bing Zi ←  ·  → Wu Yin

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.