Well, first of all, maybe language like "entities" and "souls" is not quite fitting. When describing "transcendent" things we might be able to pin it down more through a bit more discussion on what these things could actually be. And this also makes me curious how you are reconciling buddhism with atheism, seeing as I thought there was at least some trace of an animist or metaphysical aspect to buddhism. But no matter, there could be many things that circumvent the topical human sense organs. Science everyday tells us how narrow we are, how little we perceive, and that makes a direct way to my kind of rhetoric.