"one is irretrievably led to an inevitable conclusion". Well ig this is such an inevitable conclusion where are your hard facts and evidence.
Please give detailed reasoning about how you came to this conclusion. What I often find with "spiritual" takes on reality, is that if people are questioned in detail, even THEY don't know what they're talking about.
I've had two friends say "There's something else out there".
To which I say:
1) Please define "something" in detail.
2) Please define "out there" in detail.
They can't give me any indication of what they mean. So it's just part of their ego wanting things to be super-special. I've never had anyone answer this questions 1) or 2). Which is quite telling, to the fact they are talking nonsense.
I hope you aren't offended. I too went through this spiritual obsession. This process is known as spiritual materialism. It is where we become obsessed with things needing to be special. It's a normal part of the human ego to desire this.
If you could clearly state your reasoning step by step, I could then comment on each step. But at the moment your "idea", is very wishy-washy, although I know that's not your intention.
I look forward to a detailed account of what you mean :)