The problem is Paulie, just making stuff up, and/or embracing stuff that others have made rarely teaches us anything worth while, even though a stopped watch tells the right time twice a day. Talk of
"greater psychic continuum or 'spiritual' dimension of existence" is all very romantic and I understand its allure, I do. But lets not let it cloud our thinking so much that it becomes detrimental to real discovery. We could go on for ever worrying about all manner of things that are "
not proven to be the only reality"
Far more productive IMO to delve into the only reality that is available to us. And I have to say (again IMHO) infinitely more interesting and mysterious. I find more excitement in the launch of a new telescope or discovering the likes of higgs boson particle than ever I could listening to the drowning on and on about some supposed invisible psychic realm.... no offence
We can't rule anything out any more than we should rule anything in simply because we like it. The method for discovery we have developed in recent centuries has been the most successful in human history. I don't see that changing any time soon.