Do you not see that God gently drives the clouds, then joins them together, (completing the formation of a circuit between them,) and then turns them into a thick mass, and consequently you see rain-drops issue out of their midst. He sends down hail out of snow-laden mountains (of clouds) from the sky, and smites with it whom He wills and averts it from whom He wills. The flash of the lightning almost takes away the sight.