Sanming TonghuiVol. 1, On the Nature and Fortune of the Sixty Jiazi (verdicts & remarks)
Gui Si Water is unceasing water flowing into the sea; it delights in Hai and Zi, which bring transformation. Heavenly Officer, Officer Noble, Virtue Combination (Harmony), Hidden Horse, Broken Character, Bent Foot.
In Yi Mao, Gui Si, Ding You, and Yi Hai, though Water and Fire are dead and extinct, they remain pure, luminous, and wondrously fine.
When Fire dies and reaches extinction, it shines bright within while shadowed without, reflecting its light back inward; when Water dies and reaches extinction, it becomes profoundly limpid and clear, bright enough to mirror one's beard and brows; hence they are pure, luminous, and wondrously fine.