ritual passage through a narrow space symbolizing rebirth
Refers to a folk or religious practice of crawling through a cave, a grass ring, or a hole in a large Buddhist statue to symbolically undergo rebirth or purification.
When you go through a ritual passage, you feel as if you have been reborn.
narrow grotto; tight cave passage
A physical narrow cave or grotto that a person can barely squeeze through; often associated with the ritual practice but can refer to the place itself.
This mountain has a small narrow grotto that is popular with tourists.