The term dao (or tao) literally the “path,” or “way,” has been employed in Chinese religious and philosophical traditions, including Taoism, Confucianism, Buddhism, Islam, and Christianity. In general usage, the Tao refers to the proper way to act so as to fulfill one’s true role in the world. In Daoism, dao points to the ineffable creative process which gives birth to heaven, earth, and the myriad creatures. The Dao is invisible, inaudible, and subtle, though it is not separate from the sights, sounds and objects of this world. It is that which leads from nonexistence to the full flower of existence, and back again, a process which in later Daoist thought expressed in terms of yin and yang.