When the honorable priest Anan, who was one of the Judai deshi and was called the top ability of Tamon (to hear lots of sutras and to keep good behavior), was practicing meditation at a quite place, a hungry ghost named Enku appeared.
釈迦仏の十大弟子で多聞第一と称される阿難尊者が、静かな場所で坐禅瞑想していると、焔口（えんく）という餓鬼が現れた。