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; for when the eyes, composed of perishable material, have raised themselves to such a height, as to be able from the region of the earth to mount up to heaven which is removed at so great a distance from the earth, and to reach its utmost heights, how great a course in every direction must we suppose to be within the power of the eyes of the soul? which, being endowed with wings from their excessive desire to see the living God clearly, reach up not only to the highest regions of the air, but even pass over the boundaries of the whole world, and hasten towards the Uncreated.
 Genesis ii. 7. 
 Genesis i. 27. 
 

 On this account, those persons who are insatiable in their desire for wisdom and knowledge are said in the sacred oracles to be "called up." Exodus xix. 20. For it is legitimate that those persons should be called up to the Deity who have been inspired by him. For it would be a terrible thing if whirlwinds and hurricanes have power to tear trees up by their roots, and to toss them in the air, and to carry off vessels of many tons’ burden, though loaded with cargoes, as if they were the lightest things imaginable, out of the middle of the sea; and if even lakes and rivers are raised on high, when their streams actually leave the bosom of the earth, having been drawn up by the ardent and diversified eddies of the winds: and yet, if the mind, which is intrinsically light, cannot be raised up by the nature of the Divine Spirit, which is able to do everything and to subdue all things below, and cannot be elevated to an exceeding height; and especially the mind of the man who studies philosophy in a genuine manner. For he does not incline downwards to the things dear to the body and to the earth, from which he separates himself, and studies to alienate himself as far as possible; but he is borne upwards, being insatiably devoted to sublime, holy, magnificent, and happy natures.