The Piṭaka, i.e. Tripiṭaka school, one of the four divisions 藏通別圓 as classified by Tiantai; it is the Hīnayāna school of theśrāvakaandpratyeka-buddhatype, based on thetripiṭakaand its four dogmas, with the bodhisattva doctrine as an unimportant side issue. It is also subdivided into four others, 有 the reality of things, 空 their unreality, both and neither. The bodhisattva of the Piṭaka school is defined as undergoing seven stages, beginning with the four dogmas and ending with complete enlightenment under thebodhi-tree.