It is said that, when he was performing ascetic practices in Mikurodo (located in present Muroto city, Kochi Prefecture), myojo (the morning star; Venus) plunged into his mouth, causing him to awaken spiritually.
御蔵洞（高知県室戸市）で修行をしている時、口に明星が飛び込んできて悟りを開いたといわれている。