The yin and the yang are composed of a black side and an equal white side. Both sides flow into one another as yin and yang do. It is the principle of natural and complementary forces. It is based on patterns and things that depend on one another to exist. Some examples would be dark and light, feminine and masculine, good and bad, and so forth. These opposites do not fight with one another. On the contrary, they work in perfect harmony. It’s all about ebb and flow. There is a time for each.