Dengyo Daishi and Jikaku Daishi

The priest So-0 inaugurated the practice of kaihogyo based on stories of related practices which his teacher Ennin brought back from the holy mountain of WuTai in China. Subsequently, So-o developed spiritual powers and was able to heal the ailments of 3 generations of Emperors and their families. The third then gave postumous titles of "Great Teacher" to Saicho (Dengyo Great Teacher) and Ennin (Jikaku Great Teacher), the first time this honor was bestowed in Japan. It would be another 55 years before Saicho's contemporary Kukai would be similarly recognized as Kobo Great Teacher.