Yin Yang Style includes four postures. The characteristics of the Snake Form Palms: coiling and drilling power, mixing the hard and the soft. The movements are like a snake wandering and darting fangs. The Horse Form Palms of Tian's family Yin Yang Bagua Zhang consists of eight postures: Each posture has 3 Chengs and the total is 24 Chengs. The Horse Form Palms routine is divided into two parts and each part includes four postures. The characteristics of the horse form palms: the movements are bold and uninhibited, like a wild horse bucking and rushing. The Monkey Form Palms of Tian's family Yin
Yin and yang light; female and male; moon and sun", however, is an exception. Scholars have proposed various explanations for why "yinyang" violates this pattern, including "linguistic convenience" (it is easier to say "yinyang" than "yangyin"), the idea that "proto-Chinese society was matriarchal", or perhaps, since "yinyang" first became prominent during the late Warring States period, this term was "purposely directed at challenging persistent cultural assumptions". Needham discusses Yin and Yang together with Five Elements as part of the School of Naturalists. He says that it would be proper to begin with Yin and Yang before Five Elements because the former: "lay, as