The incantations of esoteric Buddhism especially garnered the support of the Heian nobility; and Enryaku-ji Temple's esoteric Buddhism was called Taimitsu, to distinguish it from the teachings of the Shingon sect's To-ji temple, called Tomitsu.
特に密教による加持祈祷は平安貴族の支持を集め、真言宗の東寺の密教（東密）に対して延暦寺の密教は「台密」と呼ばれ覇を競った。