A lot of humanists treat religion as if it were simply a kind of rival cosmological hypothesis, and that this is all it is. My view is that to the extent that religions are cosmological hypotheses, this is not the only important thing about them, and we - atheists- will never get a proper understanding of what religion is if we focus too much on the cosmology.
We have no proper understanding of the relationship between conscious thought and conscious sensation. The various forms of thought and sensation are underpinned by very different neural mechanisms; so how can the neural correlate of their conscious natures be the same? I don't think we are yet in a position to make such speculations. To make progress, we have to have a good conception of the phenomenology of consciousness, among other things.