David Nino Rodriguez: UFOs, ETs and Demons

https://www.coasttocoastam.com/guest/david-nino-rodriguez/ 

Its an immense universe with possibly many levels, portals and dimensions to it.

https://en.wikipedia.org/wiki/Demonic_UFO_hypothesis 

There could be a vast spectrum of being and entities ranging from the benevolent to the sinister.

https://strangertheology.substack.com/p/are-ufos-demons 

There is a tendency to say that they are all demons or nefarious beings.

https://www.reddit.com/r/epistemology/comments/1qwko00/are_the_ufos_aliens_or_demons_a_fun_and_topical/ 

Passport to Magonia: UFOs, Folklore, and Parallel Worlds -- Jacques Vallée https://www.youtube.com/watch?v=0l8oBAM3s54 

https://www.goodreads.com/en/book/show/406344.Passport_to_Magonia

https://www.reddit.com/r/Missing411/comments/msau9g/excerpt_from_passport_to_magonia_a_book_that

https://paranormal-intersection.blogspot.com/search?q=UFOs

https://paranormal-intersection.blogspot.com/search?q=ET  

https://paranormal-intersection.blogspot.com/search?q=demons

https://paranormal-intersection.blogspot.com/search?q=UFO  

https://paranormal-intersection.blogspot.com/search?q=Interdimensional+Portals

https://therabbitportal.blogspot.com/search?q=Interdimensional+Doorways

DOORWAYS: George R. R Martin's Failed 1992 Multiverse TV pilot

 https://www.looper.com/1304414/george-r-r-martins-failed-1992-multiverse-show-doorways-deserves-reboot/ 

Interdimensional+Portals or doorways can be such a good plot device or a major premise in a story.

https://georgerrmartin.com/notablog/2023/12/13/a-blast-from-my-past/ 

https://georgerrmartin.com/notablog/2010/07/24/doorways-coming-in-november/ 

https://therabbitportal.blogspot.com/search?q=Interdimensional+Doorways