Allen Hynek, physicist, astronomer, went from being skeptic to believer as science advisor to Project Blue Book. Before his death, he came to believe that these beings are not extraterrestrial, but extra-dimensional.
The whole idea of them coming from a distance star system was tossed out years ago. For example...
"One theory which can no longer be taken very seriously is that UFOs are interstellar spaceships."
- Arthur C. Clarke, New York Times Book Review, 07/27/75
Here are a couple of interesting quotes from someone who was abducted...
"Increasingly I felt as if I were entering a struggle that might even be more than life and death. It might be a struggle for my soul, my essence, or whatever part of me might have reference to the eternal. There are worse things than death, I suspected... so far the word demon had never been spoken among the scientists and doctors who were working with me...Alone at night I worried about the legendary cunning of demons ...At the very least I was going stark, raving mad."
- Whitley Strieber, Transformation, p. 44-45"I felt an absolutely indescribable sense of menace. It was hell on earth to be there [in the presence of the entities], and yet I couldn't move, couldn't cry out, couldn't get away. I'd lay as still as death, suffering inner agonies. Whatever was there seemed so monstrously ugly, so filthy and dark and sinister. Of course they were demons. They had to be. And they were here and I couldn't get away."
- Whitley Strieber, Transformation, p. 181
Yet where is God in all this? With all these devils, demons and extra-dimensional ne´r-do-wellers about - which He would have to have created - it would seem to make the universe a rather crowded and unruly place. It seems to me that having made Man in His image there´s plenty of depravity to deal with without invoking all sorts of bogeymen, which, by the way, there isn´t a shred of physical evidence to support at all.