What do you think of a world which has absolutely no meaning? It depends upon you to give it meaning, you assigned to it whatever meaning you see fit, could you live in such a world?
He already does, as do I and so do you. We all all already in that situation and always have been. Once could reasonably argue that it is in *living* our lives that we give it meaning. But many of us work to consciously acknowledge what that might entail - others don't and, I suspect, most do it subconsciously. Interesting we take this jump to Meaning of Life
from his post (which could be inferred, but I would not take it so). Unless this line of questioning is meant to infer that existence of a supernatural/supreme being would somehow 'give' it meaning (a notion that; although could be logically valid (ouch!), I nonetheless find absurd).
But back to the thread's question...
I think you're absolutely right that we are quite unable (or it is only with extreme difficulty, at best) to think 'outside the box' - beyond any input we've received through teaching or experience. If I follow your question right, then concepts we find completely unbelievable may, in fact, be completely sane and true objectively. Yes... I suppose so. But that would toss this whole notion in the "Sure, anything's possible"-realm; and in so being, be of spurious worth. Sure, I acknowledge "All Things are Possible" in the realm of a vast-and-infinite cosmos I've not thoroughly explored. But, we'll (most likely) be living the balance of our respective lifetimes on this world
, in this box
. I humble myself by admitting to possibilities I don't know exist, but this can be thin ice in trying to live in the here-and-now. In any case...
I do take it with great worth that we keep this in mind - that we are a product of our own experiences, teachings, sensory input, etc. Remembering that helps us to keep perspective - that this world of ours, as we see it, is *constantly* getting filtered by our own values, prejudices, expectations and the like.