Ancient Chinese cosmology situates China at the center of the world, with its capital located in the middle of the kingdom and the royal palace situated at the center of the capital, which is the precise place of the center of the world. The cosmos operates according to the theory of yin-yang and their alterations. The female principle yin is described as negative, receptive, and passive; it is low and thus akin symbolically to the earth. Yin represents cold and cloudy weather. The basic cosmogonic myth is often associated with a sequence of myths relating the origin of items needed for survival and organization of human life. In addition to items and knowledge needed for social welfare, ancient Chinese mythical narratives contain stories about savior and destructive figures. The Chinese religious tradition is a complex blend of three indigenous elements Confucianism, Daoism, and folk religion along with Buddhism, an imported religion from India.