On a mailing list I’m on, several people are talking about a Yogic practice of cutting the lingual frenum, the cord that runs underneath the tongue and holds it fast to the floor of the mouth. The purpose of this self-mutilation is to be able to curve the tongue back behind the uvula and into the nasal cavity. This procedure is supposed to cause enlightenment.
It is pernicious nonsense to imagine that the body requires mutilation for enlightenment. We are perfect as we are. Anyone who tells you anything else is selling something.