[170] And these powers are the body-guards of the mind which is worthy to bear sovereign sway, which ought also to attend upon the king, and conduct him on his way. But the soul is afraid by itself to rise up to the contemplation of the living God, if it does not know the road, from being lifted up by a union of ignorance and audacity; and the falls which are caused by such a union of ignorance and great rashness are very serious;