When a candidate presents himself for training, he must prostrate himself and declare that he is willing to do anything that needs to be done to solve the great matter of life and death. By tradition, he is scowled at by the head monk, who orders him to leave. He persists, he continues to prostrate himself, and after two or three days he is taken in. Apprentice monks are treated like slaves on a brutal plantation. Th…
Maybe he just made it up. Maybe the monks got the idea from him.
Not really possible since these are centuries-old traditions in many monasteries.