Prayer is addressed to the personal God, not because he is personal indeed, I know for certain that he is not personal, because personality is limitation, while God is unlimited.
Whatever character our theology may ascribe to him, in reality God is the infinite ideal of Man, towards whom men move in their collective growth, with whom they seek their union of love as individuals, in whom they find their ideal of father, friend and beloved.
Those thinkers who cannot believe in any gods often assert that the love of humanity would be in itself sufficient for them; and so, perhaps, it would, if they had it.
A single swallow, it is said, devours ten millions of insects every year. The supplying of these insects I take to be a signal instance of the Creator's bounty in providing for the lives of His creatures.