Yin/Yang Dun

What this means

Yang Dun charts are used for the warmer half of the year (spring/summer solstice cycle); Yin Dun charts for the cooler half (autumn/winter solstice cycle). The mode determines how stars and stems are arranged in the 9-palace grid.

In practice

In K A X A N T A, yin/yang dun is one of the concepts The Architect cross-references when synthesising your reading. The qi men dun jia engine surfaces it alongside seven other wisdom traditions so you can see how the same question reads through multiple lenses.