The moment
Within a century, monks trained on Tendai's Mount Hiei struck out with simpler paths: Hōnen's exclusive nembutsu to Amida, Dōgen's seated Zen and Nichiren's chant to the Lotus Sūtra. Shinran, Hōnen's disciple, founded no organisation; his descendants later built his following into the Honganji, which Rennyo made a mass movement. Historians now stress that Tendai and Shingon remained Japan's religious establishment for centuries more.
People: Hōnen, Shinran, Dōgen, Nichiren, Rennyo