I have always found it interesting to read and watch testimonials about alien encounters. I remember when I was a child, I used watched "Unsolved Mysteries" while at my grandma's house, and my favorite episodes were always those investigating claims of UFO sightings or alien abductions. Back then, the consensus of the reporters would usually be rather skeptical that the UFO claims were grounded in anything other-worldly. However, it seems that over the last decade, the skepticism of mainstream media about the existence of "aliens" has diminished significantly.
Upon hearing testimonies of individuals claiming to have had some sort of contact with aliens, I can't help but notice the similarities between "alien" encounters and demonic encounters. The aliens are reported to appear peaceful, with the ability to communicate telepathically. However, abductees testify that the aliens often force them to do things or go places against their will. For example, many abductees report experiencing paralysis before an abduction, and many report pleading with the aliens to no avail to stop operating/experimenting on them because of the excruciating pain. Also, once an individual reports having alien contact, they often report many alien contacts throughout their lives. Abductees also testify of experiencing intense fear that the aliens will come back to harm them. All of these experiences of abductees mirror closely the attributes of demonic possession and manipulation.
The last observation that I will note here is about the origins of Islam. I read that Mohammad, while in the cave, encountered what appeared to be an angel of light with words from God. However, the "angel" resorted to practically strangling Mohammad when he resisted reciting the "words of God." No wonder Mohammad at first thought he was visited by an evil spirit! Anyway, I just thought I'd throw that out there.