Yin Yang
In Chinese philosophy, yin and yang is a concept of dualism describing how opposite or contradictory forces change from one into the other and back again in an endless cosmic (and often comic) cycle.
Ba Gua
Three stacked yin-or-yang conditions make one of 8 figures, each representing something.
Wu Xing
Five elements, each with a yin and yang aspect, have a creation cycle and a control cycle.
Daily 4-Segment Cycle
There are four courses of energy each day.
