At the intersection of yoga and Taoist philosophy rests a unique type of yoga asana practice known today as Yin yoga. The Taoist principle of “yin and yang” insists that everything in the known universe exists as inseparable and contradictory opposites, such as male and female, dark and light, or sun and moon. The two opposites attract and complement each other, and each has within it an element of the other—as the yin/yang symbol above suggests. In this model, the yin element is feminine, dark, slow, watery, earth-bound, lunar, diffuse and passive. Yang, on the other hand, is masculine, bright, fast, fiery, ethereal, solar, focused, and aggressive. Read more here.