 For example, creation from chaos (Chinese Hundun and Hawaiian Kumulipo), dismembered corpses of a primordial being (Pangu and Mesopotamian Tiamat), world parent siblings (Fuxi and Nüwa and Japanese Izanagi and Izanami), and dualistic cosmology (yin and yang and Zoroastrian Ahura Mazda and Angra Mainyu).In contrast, other mythic themes are uniquely Chinese.While the mythologies of Mesopotamia, Egypt, and Greece believed primeval water was the single element that existed "in the beginning", the basic element of Chinese cosmology was "qi" ("breath; air; life force").