I think much of the UFO sightings/abductions reported have something to do with the use of hallucinogenic drugs, perhaps there is some truth to the sightings and abductions yet perhaps on a more psychological level as opposed to your regular Hollywood view of extra terrestrials yet after all it is absurd to believe that aliens do not exist considering the size of our unive....

I think the transportation of the mind into different realms of consciousness with the use of, in particular DMT allows certain outer beings in different realms to come into contact with the realm of consciousness this particular drug puts us in - if only for a short space of time, depending upon the method taken.