Saichō was clearly dissatisfied with the traditional T’ien-t’ai position that monks should be ordained with the Ssu fen lü precepts, but practice them with a Mahāyāna spirit. The precepts needed to be reformed as thoroughly as meditation and wisdom had been. For Saichō the Perfect threefold teaching consisted of the Fan wang precepts as the Perfect precepts, the four types of Tendai meditation (shishu sanmai) as Perfect meditation, and the study of the Perfect teachings expounded in such texts as the Lotus Sūtra as Perfect wisdom. By following Perfect practices Saichō claimed that “even a person with the dullest faculties would surely receive some sign (from the Buddha that his efforts were effective) after spending twelve years (on Mount Hie).”
Saichō: The Establishment of the Japanese Tendai School, p192-193