In the first heaven Moses saw streams upon streams of water, and he observed that the whole heaven consisted of windows, at each of which angels were stationed. Metatron named and pointed out all the windows of heaven to him: the window of prayer and the window of supplication; of weeping and of joy; plenitude and starvation; wealth and poverty; war and peace; conception and birth; showers and soft rains; sin and repentance; life and death; pestilence and healing; sickness and health; and many windows more.
Moses Toured the First Heaven and Saw Armies of Angels
Legends of the Jews 4:165