Extrapolating from the concept of a season being at "full height," a scale of balance within the Five Elements and four seasons was devised. This scale ranges from wang "full height" to hsiang "favorable", hsiu "at rest", ch'iu "confined", and ssu "moribund".
從「旺」的觀念，又發展出五行和四季的相互關係﹘﹘即所謂的「旺」、「相」（次旺）、「休」（休然無事）、「囚」（衰弱被囚）、「死」（了無生氣）。