US-P16.020ab ।US-P16.020cd ॥
In plain words
The closing and opening of the eyes belong to the realm of the vital breath, not to the eye itself; similarly, because of their inherent luminosity, they do not belong to the mind or the intellect.
Close to the Sanskrit
Closing and opening at the eye’s location belong to vital air, not to the eye, whose function is illumination. Likewise they belong neither to the mind nor to the intellect, whose function is illumination.