known as the Holy Sepulchre, into which one creeps through a tiny door. Worshippers in such a spelaeum could hardly help identifying themselves with him who died and rose again, i. e., with the reborn.
Jung identifies the Holy Sepulchre as an initiatory spelaeum in which the ritual architecture compels identification with the dying-and-rising god, archetype of psychic rebirth.
, Symbols of Transformation, 1952thesis