That reminds me of this thread where user chinacat describes taking a thumbprint. He calls it a "beyond death experience". Very interesting stuff and I recommend reading his posts.
https://www.shroomery.org/forums/showflat.php/Cat/0/Number/1...
Also, reading about a few NDEs, they sound quite similar to a DMT trip, and they seem to have similar effects in terms of how a person completely changes afterwards. The range of possible conscious experiences is really something extraordinary and most humans only ever experience a miniscule fraction of it.