Until recently, our view of Chinese Buddhist history was overly influenced by sectarian categories inherited by Japanese Buddhism, which clearly distinguished Zen/Chan, Pure Land, and esoteric Buddhism (mostly Shingon 真言). Recently, scholars have begun to study syncretistic trends known as “esoteric Zen” and “esoteric nenbutsu.” However, the latter has so far been mostly examined within the framework of Shingon Buddhism. This paper will emphasize the importance of nenbutsu in the esoteric Tendai school (Taimitsu 台密), particularly in a secret ritual called “Genshi Kimyōdan” 玄旨帰命壇.
Bernard Fauré (Tue,) studied this question.