Taijitu Taijitu A taijitu () is a symbol or diagram ( "tú") in Chinese philosophy representing Taiji ( "tàijí" "great pole" or "supreme ultimate") representing both its monist ("wuji") and its dualist (yin and yang) aspects. Such a diagram was first introduced by Song Dynasty philosopher Zhou Dunyi (周敦頤 1017–1073) in his "Taijitu shuo" 太極圖說. The modern Taoist canon, compiled during the Ming era, has at least half a dozen variants of such "taijitu". The two most similar are the "Taiji Primal Heaven" (太極先天圖 "tàijí xiāntiān tú") and the "wuji" (無極圖 "wújí tú") diagrams, both of which have been extensively studied
Yang Yin Yang Yin Yang Yin (楊愔) (511–560), courtesy name Zhunyan (遵彦), nickname Qinwang (秦王), was a high-level official of the Chinese dynasty Northern Qi. Yang Yin came from a clan that produced many officials of Northern Wei. His father was Yang Jin, and his mother was Yang Jin's wife Lady Yuan, who came from a noble lineage herself, being the granddaughter of the famed official Yuan He. In his youth, he studied the histories, the "Shi Jing", and the "I Ching", but particularly favored the "Zuo Zhuan" version of the "Spring and Autumn Annals". In 526, during the reign of Emperor