“Before the sun, the light, the moon, and the stars are darkened, and the clouds return after the rain” (Ecclesiastes 12:2); “Before the sun…are darkened” – this is [a person’s] countenance; “the light” – this is the nose; “the moon” – this is the forehead; “and the stars” – these are the cheekbones. “The clouds return after the rain” – Rabbi Levi said two matters about this, one for Torah scholars and one for ignoramuses. One for Torah scholars: One comes to weep, and his eyes shed tears [copiously]. One for ignoramuses: One who comes to urinate, excrement emerges and precedes it.
Before the Sun Grows Dark and the Light Fades
Kohelet Rabbah 2:1