As I remember, I grew up in the Church of England finding in it a sense of solidarity with others and of ‘light in darkness’. In later years I came, after some struggle, to think that the received ‘arguments for the existence of God’ are reasonably reasonable. (Some of the more modern arguments strike me as astonishingly incredible.). Such faith as I have does give me something to hold on to in the face of mortality, I admit, though I don’t think it’s an affirmation of my importance in the scheme of things but of my hope that there is some sort of a scheme of things somewhere or other. Perhaps that’s just silly but I hope not.
I fully accept that the religious sense of solidarity can become a sense of angry alienation. The search for light in darkness can become an invention of very dark things. I’ve never that I can remember believed in demons, pace C.S. Lewis. I think that the idea that exponents of another faith pray to a different God is really a demonological idea, quite dangerous and maddening.
The sense of different personalities or different levels of being within the divine unity – rather than different Gods – goes back to ancient roots, not necessarily angry or polemical. There is the mysterious pattern of the two names of God – El (with variations) and Yahweh in the OT – and the argument of Plato’s Timaeus, which was to be very influential.