Then the seven imperishable ones approach him. There are the red lines in the eye, and by them Rudra clings to him. There is the water in the eye, and by it Parganya clings to him. There is the pupil, and by it Aditya (sun) clings to him, There is the dark iris, and by it Agni clings to him. There is the white eye-ball, and by it Indra, clings to him. With the lower eye-lash the earth, with the upper eye-lash the heaven clings to him. He who knows this, his food does never perish.

In plain words: The passage links each part of the eye to a god: the red lines to Rudra, the tears to Parjanya the rain god, the pupil to the sun, the iris to Agni the fire god, the white to Indra, and the eyelashes to earth and heaven. Whoever knows this will never run short of food.