1. The Western Han Dynasty Four God Tiles, named Han Wadang God in foreign language, is a cultural relic. There are four Wang Mang Four God Tiles, each of which is basically equal in size and weight. The tile head is round, with a diameter of 18 cm; The tile barrel is semicircular and 10 cm long.
 2. On the tile heads, there are "four gods", namely, blue dragon, white tiger, rosefinch, and basalt patterns. In ancient times, "four gods" respectively represent the stars in the east, west, south, and north directions of the sky. The four gods of the Western Han Dynasty came from the Western Han Dynasty (206 B.C. - 8 A.D.), with a diameter of 16-19 cm, and a side wheel width of 2-2.1 cm. In 1956, the site of the Great Wall of the Han Dynasty in Xi'an was unearthed. The origin of the four gods is quite early. The Han Dynasty, The four gods are regarded as the symbol of force, and appear on the palace decorative tiles and bronze mirrors. The four gods' tiles represent four directions, east, west, north, south, and south. They also have the meaning of exorcising evil spirits and eliminating evil, and controlling auspicious houses. Their exquisite shapes reflect the high wisdom and artistic talent of craftsmen.
 3. The tile with four gods pattern was very popular in the Han Dynasty. It included four kinds of animals, namely, green dragon, white tiger, rosefinch and basalt. A group of patterns composed of these animals is also called "four spirits pattern".
 4. The pattern of four gods was widely used in the Han Dynasty. Bronze mirrors, lacquerware, stone carvings, bricks and tiles and other handicrafts were often decorated.
 5. In the Han Dynasty, the four gods were regarded as related to avoiding evil and seeking good fortune, which also indicated seasons and directions.
 6. The orientation of Qinglong is east, representing spring; The orientation of the white tiger is west, representing autumn; The position of the rosefinch is south, representing summer; The position of Xuanwu is north, representing winter.
 7. Cao Zhi, the son of Cao Cao, wrote in the Divine Turtle Ode: "The virtues of the four spirits of Jia lie in one side, with black dragons crouching in the eastern mountains, white tigers roaring in the western hills, Xuanwu gathered in the cold gate, and rosefinches in the south.".
 8. It is the description of the four gods.