To be clear, you do not think the natural universe is real?
What is it, then, in your opinion? I know you think it's unreal, but more precisely what do you think it is, or might be?
An illusion.
I can get more specific, but it would be utilizing spiritual and/or psychological terminology
If you do not believe the natural universe is real, then what do you believe is this underlying reality?
I'd stipulate what you are calling "natural" universe with (perception of) physical existence. I believe the underlying Reality is God, or put in other words that I may use: God's Mind, God's Kingdom, Heaven. I routinely just reference it as Reality (with a capital R).
Yes, it does directly address it... or at least what I think you are trying to say. When you ask me for how I would "bypass perception of self," do you mean to ask me how I would account for personal bias (i.e. confirmation bias)?
No. I'm asking how it is said "actual evidence" exists without the conscious awareness of observer in determining it is a) evidence and b) existing.
How do you doubt the reality of physical existence when it is, quite frankly, quite self-evident?
By (spiritual) Knowledge regarding (perception of) Self.
If one wants to assert instead that, for instance, all of physical reality is really an illusion, and that we are in a matrix of some sort (e.g. maybe our minds are real and all is a dream), this merely begs the question: how do you know this? It's a baseless assertion.
We don't know this by seeing answers within the illusion, I'll grant that. We can know this by looking within. Thing is, it doesn't need outer acceptance / agreement for it to have strong basis. In essence, finding the answer within overcomes conviction in all ideas of separation from a) Reality (aka God) and b) other selves. It then provides acute understanding of what the world (physical existence) actually is, and full restoration of Divine Insight is possible. Might not be simple as a dimple, but that has to do with willingness and attachment(s) to physical existence. Part of reason I bring up night dreams is because the analogy works on a few levels, though the restoration of Divine awareness, not so much.
The simplest solution is the most reasonable. Until we have evidence that physical existence is unreal, it is reasonable to assume that physical existence is real since it makes the most sense given our present pool of evidence and knowledge about reality (i.e. physics, etc.).
I see the evidence as quite Self-evident. I do think it is quasi-rational to assume physical world is real, but disagree it makes the most sense given present pool of evidence and knowledge about reality. If physical sciences wish to close themselves off to available evidence based on broad assertions that have not overcome own existential quandaries regarding fundamental nature of (physical) existence, that's up to each individual scientist. Asking me to give into that sort of ignorance because of such naive assertions is, how you say, utterly ridiculous in terms of Knowledge and Reason.
Either way, God as self or as separate from self, how does one begin to establish that the existence of God is more than mere imaginative speculation?
I've already explained this above. And same holds true for perception of physical existence. One might say there's millions that hold this to be 'true' and yet if same thing is said about God, that is met with a lot of 'yeah but' type assertions.
It's not like the assertions I'm making are the first time conscious awareness has presented them openly to anyone wishing to understand. Nor do I think one would get vastly different understandings going within their own consciousness. I do think there would be definite differences that could be found, just as two scientists might argue over 'objective' differences of phenomenon. But ultimately, a lot of this comes down to 'what is this for.' And at that level, it is lots of personal, self justified but highly speculative justifications as to what makes for meaningful criteria and determinations of 'advancement.' IOW, I don't benefit personally from discussions / assertions about origins of the universe and life as we know it (in physical existence). I entertain them, and they entertain me. But without making rather huge leaps, they tend not to benefit my daily life or greater understandings of my being. When I first was transforming from agnostic to theist, I was very much hung up on this type of question. But given the parameters of how I routinely see it being discussed, it is not the ways in which I would even speculate, nor do I see much of that serving purpose of greater understanding. But that, I do identify, is on me and if for another it is their 'purpose for living' or 'how they find their livelihood,' I do my best to refrain from judging that either way (positively or negatively). If anything, it strikes me as awesome that there is so much wonder in our collective consciousness to entertain such paths.
Again... how do you know that the union of "God and Self" is a reality beyond the confines of human imagination? It's one thing to conceptualize physical reality as analogous to a dream, and entirely another thing to factually know that this is the case.
I've experienced union of God and Self in acute way, and then routinely (read as daily) get glimpses (for lack of a better word) of that union. For me, God equals Love. When I had acute awareness of the union, there were a number of things that have stuck with me to this moment, and from the perspective of "I sure as heck feel separate from this notion of God, whatever that vague concept means" it is challenging to put those in what I would call proper perspective. Like one thing that I quickly understood during union was it is literally the perspective that is underlying reality (with a little r) all the time. As if, I've always known it. On the other side of that awareness, it shows up as "I have no idea what that union is like, if its possible and I highly doubt anyone alive (ever) does." Which is another thing that was crystal clear to me, that everyone does know this. Such that even from the ignorant mindset, it makes as much sense to me to assume everyone does know union with God right now than personal assumption that concludes no one does, because I'm self determining that is the how things are in this world. For all anyone knows, full union is happening or already has and essentially we are all waiting on you (or me) for it to be complete. All this is how I speculate from ignorance. From union perspective, it was a knowing or self evident that regardless of how things may appear to my physical eyes, all are "in the know." These 2 things along with the exponentially increasing joy factor are my hugest takeaways from my experience that lasted at least 3 weeks and up to 3 months. But I also recall experiences of being able to heal anyone at any time as if that was literally no problem. One might think that would be the hugest takeaway from such an experience, but it really wasn't cause, I think of how "natural" and "knowledge" were put in what I'd call proper perspective. I didn't see it as I need to physically be present for healing to occur, and yet did understand that this is how I am plausibly being perceived and so "why not." Every single instant of every single waking moment was me welcoming the moment as a wonderful opportunity to share / grow joy. In my less conscious awareness, I have many instances during the day of not looking forward to something that is on my daily schedule and looking more forward to other things. As if I am best judge of what will make me happy and what won't. Anyway, I feel I've said enough and yet don't mind bringing up more. I do factually know physical existence is unreal, but besides telling one to go within to what I identify as spiritual awareness, I admit it is challenging to use physical existence to suggest physical existence is unreal. Same holds true in a night dream. Would be very challenging for a character in a night dream to convince me that I'm dreaming, though I'd probably be much more convinced if I had (self determined) awareness that I am in fact dreaming.