I've heard the same. Do you know anyone that has personally tried it?
me a few times
Lasts about 12 minutes but not articulate until 15 then you are totally normal by 20
I have never gone deep as I cannot lose my fear of it
Totally bizarre
I had the hearing of superman
I heard the sound of ants marching
Once 40 of us took turns doing it with guides
Some went a lot a deeper than me but everyone came safely back
There is a documenary on it by a called The God Molecule because people experience God