In 956 when he was fifteen years old, he lectured "Shosan Jodokyo" (a Buddhist sutra) and was selected as one of the lecturers of Hokke hakko (ceremonial series of eight lectures on the eight scrolls of the Lotus Sutra) by the Emperor Murakami.
天暦10年（956年）、15歳で『称讃浄土経』を講じ、村上天皇により法華八講の講師の一人に選ばれる。