Attending the naidojo (palace chapel, the space of which was reserved particularly for esoteric rituals) as a Zenji (Master of Zen Buddhism) in medical nursing, he successfully healed the illness of Empress Koken (the future Empress Shotoku) at Horanomiya (detached palace) in 761, and therefore, was highly respected after that.
看病禅師として内道場に出仕し、天平宝字5年（761年）、保良宮において孝謙天皇（後の称徳天皇）の病気を治して以後重んじられた。