[133] Many also have even erected the outward senses after the fashion of a tower, raising them to such a height as to be able to reach the very borders of heaven. But the term heaven is here used symbolically to signify our mind, according to which the best and most divine natures revolve. But they who dare such deeds prefer the outward senses to the intellect, and desire by means of the outward senses forcibly to destroy all the objects of intellect, compelling those things which are, at present masters to descend into the rank of servants, and raising those things which are by nature slaves to the rank of masters.