Phatboy, Xenocrates referenced a book called Spirit of the Rainforest where he stated that the book details the shamans’ interactions with demons in graphic detail. I simply proposed that shaman use entheogens*, which often causes people to have hallucinations of alien like characters. I stated that given that fact, that book and the shaman that are quoted in it, are not really what one should call empirical evidence, but more anecdotal.
Coragyps — Thanks for the warm greeting!!!
*
Erowid DMT Vault : Apparent Communication with Discarnate Entities, by Peter Meyer