What This Is
A change a palace works upon itself. Beyond the birth-year 四化, the Four Transformations that the chart receives at birth, a palace can transform a star sitting within it by its own palace stem. This is 自化. Where the natal 四化 arrives from outside the palace, sent in by the year of birth, 自化 is generated from within — the palace acting on its own star, self-summoned rather than received.
The mechanic is structural and specific. The palace stem reaches the star already housed there and turns it, without any outside agent. It is the chart transforming a part of itself by its own hand, in one of four registers.
When It Fires
Self-transformation fires when a palace stem is positioned to act on a star within the same palace. It is read by two questions only: which palace self-transforms, and which of the four transformations it produces — 自化禄, 自化权, 自化科, or 自化忌. The palace tells you the domain of life the change moves through. The type tells you the direction the energy takes.
It is not an event imported into the chart from a year or a cycle. It is a standing property of how a palace is built — a self-acting tendency written into that area of the life from the start.
What It Changes
It changes how that palace holds its own energy. A palace with 自化 does not simply contain its star and wait for outside transformation to move it; it transforms the star itself, continuously, by its own nature. The area of life the palace governs carries a built-in motion — it generates its own change rather than only responding to change sent from elsewhere.
The direction of that motion is everything, and it splits cleanly. Three of the four turn the energy inward and hold it. One turns it outward and lets it go.
How To Read It
Read first which palace self-transforms, then which of the four it produces.
自化禄 — self-generated 禄. The palace produces its own flow and ease from within, energy turning inward and gathering. A 向心之吉, a centripetal good: the area holds and feeds itself.
自化权 — self-generated 权. The palace generates its own authority and force, drive arising from inside rather than conferred from without. Inward-turning and holding, the area builds its own command.
自化科 — self-generated 科. The palace produces its own clarity, name, and order from within. Again centripetal: reputation and form the area gives itself.
自化忌 — self-generated 忌. Here the direction reverses. This is a 离心之失, a centrifugal loss: the palace vents its own force outward, leaking the energy it should keep. The area expends itself, generating its own depletion rather than its own gain.
The classical reading does not call the first three simply good and the last simply bad in isolation; it names their direction. 禄, 权, and 科 hold the energy at the center of the palace. 忌 spends it away from the center. The rest of the chart colours how favourable or costly that direction is in a given life — never a flat verdict, always the mechanic read against the whole.
Where This Shows Up
It shows up wherever the self-transforming palace governs. A palace of career that self-transforms carries its own internal motion in work; a palace of relationships does the same in the bonds it rules; a palace of wealth, in the holding and movement of resources. The texture is always the same: that area of life generates its own change from within, rather than waiting to be moved.
Lived, the inward types feel like an area that quietly feeds itself — standing, drive, or clarity arising without external supply, the palace self-sustaining. The outward type, 自化忌, feels like an area that leaks under its own power: effort and energy spent from within and not retained, a domain that vents itself even when nothing outside is taking from it. Which palace, and which of the four — that pair is the whole reading.