This is relevant to the thread. A group of people deep into the UFO/UAP phenomena, some at the DOD, are convinced they are demonic. I'm not religious, but do not rule out such possibilities and it has some possible overlap
with theories of Dr Vallee . BTW, that's one of the best channels on YT for all things big questions, be it physics, religion, etc, etc:
"Many theologians take angels and demons seriously. Why? Certainly, most human beings believe in angels and demons. Anecdotal cases are legion. Certainly, such nonphysical beings, in one form or another, populate most of the world’s religions. But angels and demons seem out of place, anachronistic, in our modern world. Is there anything here we should take seriously?Thomas Flint is a retired Professor of Philosophy at the University of Notre Dame, where he focuses on issues in philosophical theology and metaphysics."