Nyūjō 入定

Entering the ground alive: a monk has a pit dug, goes down into it in meditation, and does not come out. English writing routes this straight to the preserved bodies of the north, which is a different thing. In one Edo record a monk goes in at sixty-one, the sound of his gong and his chanting is heard from inside the mound for fifty-five years, and when a storm brings down the pine above him the villagers dig him out and find him still ringing it, and still able to answer a question.