“Are they extra-terrestrial or from another realm of existence? It’s seems increasingly more probable the latter, to me.”
I know believe it is both. Along with the ability to transcend time and space.
now
I agree, but just like the quote from Hamlet in the article, there are more things in heaven and earth than are dreamt of in our philosophy. BTW, in Elizabethan times what science they had was called “philosophy”. While I suspect that there is a spiritual side to the visiting entities, I also suspect that some are from other distant civilizations, if only because they evidently use technology, including manufactured craft to come here. I think that once we learn more about the nature of consciousness, much of what we see as extraterrestrial visitations will fall into place. Aldous Huxley once wrote that consciousness was like a giant reducing valve which took in the overwhelming cacophony from our senses and filtered out what was absolutely necessary for our survival and increase. This implies that there is much that we sense but can neither see nor process in our normal worldview.