Srid pa ho (Divination Chart), Tibet, late twentieth century. Paint on cloth. Via www.loc.gov
Tibetan astrology depicts the signs and symbols of the universe in this traditional format, possibly introduced from China as early as the seventh century and popular in Tibet since the seventeenth century. The central figure is a large golden tortoise, representing the Bodhisattva of Knowledge, upon whom are drawn various geomantic diagrams, such as the nine magic squares and symbols of the eight planets. This type of Thangka is often hung in homes for protection and displayed for special occasions.