The Principle of Yin and Yang, and Why Twenty-Four Directions

Yin and yang are parents, not opposites

This is the book's philosophical centre. Yin is called the mother of things, yang the father — they are generative partners, not a good side and a bad side. Going with them brings through-flow; going against them brings blockage, exactly as loyalty to a ruler brings rank and defiance brings ruin.

The author's complaint is directed at his contemporaries: they chase the popular techniques — five-surnames matching, the eight mansions, the yellow-path and white-direction tables — and in doing so violate the great principle. Worse, when their buildings fail, they blame yin and yang itself rather than their own misuse of it.

The practical proposal is the book's structural innovation: take the accumulated verified methods and lay them out as twenty-four directions and eight divisions across nine palaces, matching male and female positions and marking the boundary between a house's yin and yang zones — so that fortune and misfortune can actually be checked.

If you only read one chapter of this book, read this one. It explains what the twenty-four directions are for: not decoration, but a coordinate system for an argument that would otherwise stay abstract.