Dualistic cosmology Confucianism, beliefs that divide the universe into the complementary oppositions of yin and yang. In traditions such as classical Hinduism, Zen Buddhism or Islamic Sufism, a key to enlightenment is "transcending" this sort of dualistic thinking, without merely substituting dualism with monism or pluralism. The opposition and combination of the universe's two basic principles of yin and yang is a large part of Chinese philosophy, and is an important feature of Taoism, both as a philosophy and as a religion, although the concept developed much earlier. Some argue that yin and yang were originally an earth and sky god, respectively.
Chinese sun and moon mirrors respond with fire: the pure essence of "yang". When placed before the moon—the ultimate "yin" 陰 phenomenon in the world—they respond with water: the pure essence of "yin". Thus mirrors offer the paradigm for "proper responsiveness": they reflect the true essence of the ultimate "yin" and "yang"—the alpha and omega of phenomena in early Chinese cosmology." (Carr and Ivanhoe 2000: 56) Erin Cline says the early Chinese attributed mirrors to have a mysterious power and great religious significance. The ceremonial bronze "fusui" 夫遂 and "yangsui" 陽燧 mirrors were seen as active, responsive objects because they could be used to produce