While I agree that Quantum Physics seems to offer a good explaination of relationship between the physical and spiritual realms, I must disagree with you that UFO’s are simply from other areas within our own Universe. What evidence of this do you offer?
Everything that we know of these beings points to their ability to bend the “rules” of our own Universe at their whim, which is something that I would expect from a being that is not of this plane of existance but not something that a being from our plane of existance can perform, so please let me know what you think supports the idea of these beings belonging to a physical nature instead of a spiritual nature.
Now, I am open to new information changing the way I view a subject so if you have some kind of new information that I haven’t heard before, please share it.
There are people who've witnessed ET deaths and seen their corpses. Sounds like physical reality to me.
As to their abilities to bend ‘rules’, to those who don't understand how a particular technology works, it always looks fantastic.
“Any technology, sufficiently advanced, is indistinguishable from magic”. (I forget who made that statement so I cannot attribute the quote, but it sums up my attitude about advanced technology rather nicely.)
I doubt a person from the 18th century could guess that a microwave oven was capable of cooking food or boiling water. Our homes, offices, and industries are filled with devices that do things which someone from just 50 years ago would perceive as wondrous, even magical.