Sōji-ji (總持寺) is one of two daihonzan (大本山, "head temples") of the Sōtō school of Zen Buddhism. The other is Eihei-ji temple in Fukui Prefecture. Fodor's calls it "one of the largest and busiest Buddhist institutions in Japan". The temple was founded in 740 as a Shingon Buddhist temple. Keizan, later known as Sōtō's great patriarch Taiso Jōsai Daishi, founded the present temple in 1321, when he renamed it Sōji-ji with the help and patronage of Emperor Go-Daigo.