Lobed Mirror with Heaven and Earth between the Paired Phoenixes, mid to late 700s. This mirror bears an important inscription as well as symbolic imagery of the Eight Trigrams and Heaven and Earth to express the ancient Chinese cosmological ideas. The inscription reads: Circle above and square below: These are symbolic of heaven and earth. In the middle are the Eight Trigrams. Making clear [the forces of] yin and yang. Stars and constellations are well aligned; The sun and the moon are virtuous and bright. Circulating around [the earth] is water, Giving identity to the Four Great Rivers. Within are the mountain ranges, To signify the lordly heights.