De Plantatione

It follows, therefore, since the soul of man has been fashioned in accordance with the archetypal word of the great cause of all things, that his body also, having been raised up to the purest portion of the universe—the heaven, must extend its vision, in order that, by a comparison with what is visible, it may attain to an accurate comprehension of what is invisible.

Since, therefore, it was impossible for any one to perceive the attraction of the mind to the living God, except for those persons alone who were drawn towards him (for that which each person suffers, he alone particularly knows), God has given us the eyes of the body (as an evident and visible image of the invisible eye), which are able to look up to the heaven;