The image of double human heads or animal heads sharing a single body is associated with Mystical Tomb Figurines to Ward off Evils(神煞佣)was found in the Goguryeo(高句丽)mural tombs and the Sui(隋)and Tang(唐)Dynasty tombs in Wuchang(武昌)city.Thecustom of burying Mystical Tomb Figurines to Ward off Evils(神煞佣)in Wuchang city may comefrom Shanxi(山西)province and Hebei(河北)province.From the end of Emperor Gaozong(高宗)of the Tang Dynasty to the beginning of Emperor Xianzong(玄宗)of the Tang Dynasty,the custom of burying a Mystical Tomb Figurines to Ward Off Evil Spirits(神煞俑)was popular in Wuchang city,but after the Anshi's(安史)rebellion,this custom was lost.According to the image arrangement of Goguryeo mural tombs,Dizhou(地轴,pottery figurine with double human heads or animal heads sharing a horizontal snake body,used as a funerary object)appears to represent a god of earth who holds the center of the earth.The Dizhou figurine unearthed from Sui and Tang Dynasty tombs in Wuchang city is related to the Lei Fa(雷法,Thunder Rites or Thunder Magic,a classical form of Taoism).Transcend time and space,similar materials called Dizhou are found in Goguryeo mural tombs and the Sui and Tang Dynasty tombs inWuchang city because both developed based on the traditions of ancient tombs in the Eastern Han Dynasty.
The image of double human heads or animal heads sharing a single bodyMystical Tomb Figurines to Ward off EvilsGoguryeo mural tombsSui and Tang Dynasty tombs in WuchangSpread and Evolution