I'm reading two highly enjoyable books right now that have a bit to do with aliens and are not your run of the mill abduction story. They both hypothesize that contact with beings and other so called spiritual or supernatural phenomena (near death experiences, spontaneous mystical/religious experiences, exploring invisible dimensions) may be something that has a basis in the chemistry of the brain.
The first is called DMT: the spirit molecule and the other is called Inner Paths to Outer Space: Journeys to alien worlds through psychedelics and other spiritual technologies.
Here are some cool links I'm certain many will enjoy. I wish I could remember how to embed youtube vids so that people would be more willing to give them a look. It's well worth a debate.
the intro to inner paths to outer space
http://www.slawcio.com/inner.html
joe rogan talks about his dmt trips
http://www.youtube.com/watch?v=m51X4z1xVWE
and
http://www.youtube.com/watch?v=grcqs9cDuN8
a preview of the upcoming dmt documentary
http://www.youtube.com/watch?v=v905fhCqq2Y
dr. rick strassman discusses dmt (very cool video and summary of the spirit molecule)
http://www.youtube.com/watch?v=6MQUGjd21MA
a simulated ayahuasca (brew containing dmt) trip from the movie blueberry- around the 7 minute mark the trip gets f'n insane
http://www.youtube.com/watch?v=FINU71FyMto
watch and discuss!!!