Leaders of esoteric Buddhism often need to become mendicant monks for a period of time after they retire, with only the most rudimentary of belongings, so as to unburden themselves of the long years of being venerated and overcome the obstacles of dignity and honor.
密宗有些上師退位後，要修頭陀行，讓一切尊榮盡去，三衣一缽，或讓人視為狂顛，就為了超越這長期被尊崇為大師所形成的生命障礙。