Yin Yang illusion is inspired by Beijin opera from the late Qing dynasty. In Chinese history, the art of theater is one of the most important art form, mostly important because of it serves from the royal family to public, with all different types of entertainment. I am especialy facinated by the actors and actresses from the end of the Ching dynasty, which was the peak of the art. The opera used to be played with only men, but women, from that period, appeared actresses on the stage again.