It might be helpful (and I hope not too blasphemous) to think of God as an extreme version of The Wisdom of the Octopuses, only crossed with the essence of the Holy Trinity—then extended out exponentially into the billions.

What if the most common way God, as an infinite multitude of souls, causes things to happen in our world is by providing us with helpful thoughts which, as a side effect, create a feeling in us that somehow, they might be originating outside ourselves?
 
I’ll be the first to admit, all this can sound (even to me) a bit like a reprise of that classic example of over-thinking theology, “How many angels can dance on the head of a pin?”

It does a surprisingly good job, though, of explaining the unusual personal experiences I’ve described.