Yin and yang viewed as parts of an oneness that is expressed in the Tao. The term "dualistic-monism" or dialectical monism has been coined in an attempt to express this fruitful paradox of simultaneous unity and duality. Yin and yang can be thought of as complementary (rather than opposing) forces that interact to form a dynamic system in which the whole is greater than the assembled parts. According to this philosophy, everything has both yin and yang aspects (for instance, shadow cannot exist without light). Either of the two major aspects may manifest more strongly in a particular object, depending on the criterion
Yang Yin Yang, not willing to accept Ge's commission, pretended to be ill by holding cow blood in his mouth and then spitting it out. In 529, after Ge Rong had been defeated by the Northern Wei paramount general Erzhu Rong, Yang Yin returned to the Northern Wei capital Luoyang and was made a low level imperial official in the administration of Emperor Xiaozhuang. Later that year, when Yuan Hao the Prince of Beihai claimed imperial title under support from Liang Dynasty and captured Luoyang briefly, forcing Emperor Xiaozhuang to flee, Yang Yin convinced his cousin Yang Kan to remain loyal to