After that, he engaged in Shugendo school (Japanese ascetic and shamanistic practice in mountainous sites) in the Yamato Katsuragi Mountain (Kongo-san Mountain of the Kongo mountainous district) and continued ascetic practices in the mountains of Kumano and Mt. Omine, and was inspired with Zao Gongen (the principal image of the Kimpusen Zaodo, and the highest worship object of the Shugendo) that allowed him to establish the base of Shugendo.
その後、大和葛城山（金剛山(金剛山地)）で修験道を行い、熊野や大峰山（大峯）の山々で修行を重ね、金峯山（吉野）で蔵王権現を感得し、修験道の基礎を築いた。