Because his birthplace Fujitsu no sho was in the estate of Ninna-ji Temple in Kyoto, he entered Ninna-ji Temple Jojuin when he was 13, and entered the Buddhist priesthood to become a priest at age 16.
生誕の藤津庄が京都仁和寺領であったため、13歳で仁和寺成就院へ入り、16歳で得度・出家。