Among Mandala (Mandala, or a diagram that depicts Buddhist deities according to certain geometric formats and illustrates the Buddhist world view), 'Ryokai Mandala' (Two World Mandala) (possessed by Kongobu-ji Temple, an important cultural property) has been said to be painted by TAIRA no Kiyomori with his own blood, and it is called 'Chi Mandala' (blood Mandala).
曼荼羅には、保元元年（1156年）に平清盛が自らの血を用いて描いたと伝承される「両界曼荼羅」（金剛峯寺蔵、重要文化財）があり、「血曼荼羅」と称される。