Masatomo then parted from his father who lived a secluded life, and went to Kyoto with his mother and older sister, where he became a Buddhist priest of a new sect called Nehanshu, recieving teachings from the founder Kugen Shonin.
そして、隠栖した父と別れて母や姉共に当時涅槃宗という新宗派が京都で誕生、政友はその宗祖空源上人の教えを受けて入門得度した。