> I am trying to understand the chemical variations of substances
> that can trigger the out of body journey experiences. I
> understand that Tryptamine, derived from the amino acid
> Tryptophan is the basic building block. My question is what are
> the variations and differences between them... Something that
> would say, "you got your Serotonin, your DMT, your Psilocybin,
> your Ibogaine, your LSD..." etc. and would also list their
> natural occurrences in nature.
> Also, did anyone try to classify and make a list of the most
> commonly encountered entities like DMT Elves, "Alien" grays,
I suggest you read "Supernatural" by Graham Hancock.