He enter Mt. Hiei (a monastery complex atop Mt. Hiei, the headquarters temple of the Tendai Sect) to become a priest (i.e., to enter the Buddhist priesthood) and studied kyoso (a logical study of doctrines) and kanso (techniques for judging the fates and characters of people from their appearance) there.
比叡山に入って出家・得度し、天台における教相と観相を学んだ。