Our physical sun, our nearest star, is of course the provider of the energy that makes life possible on earth. Since ancient times it has been considered, if not a god in itself, the physical correlate of the divine, which is the Spiritual Sun.
It appears necessary to imagine the divine as 'out there' while we know philosophically that we subsist in the divine as our ground of being; the divine is not 'out there' any more than it is 'in here'. The Ground of Being is immanent and transcendent. Immanent in that it is closer to us that our own heartbeat, transcendent in that it is not identical to any beings or beings, not even the sum of all beings.
The relationship between process and the divine source is analagous to 'waves' on the ocean of being. Waves come and go... a transient disturbance of the surface that does not disturb the depths below, yet is not apart from the depths. And if the ocean is the ground of being in this analogy, then at the surface being meets non being, their dialectic results in 'becoming' (or coming and ceasing to be)