The planetary paired fish, toads, deer, goats, and birds revolving in the sky in primitive and folk art are philosophical symbols which unified in tile theory of yin-yang and perpetual life. Such philosophical and cultural implications were revealed in folk art designs in which two totem animals facing each other, with a symbolic sun up above in tile middle, such as "Two dragons playing with a ball," "Two phoenixes facing toward the sun," or with a symbol of life in the middle in "The tree of life and a pair of deer," "The tree of life with a pair of goats," or with "A pair of monkey" etc.