To have the “eyes of the heart enlightened” with a particular truth means to have it penetrate and grip us so deeply that it changes the whole person. In other words, we may know that God is holy, but when our hearts’ eyes are enlightened to that truth, then we not only understand it cognitively, but emotionally we find God’s holiness wondrous and beautiful, and volitionally we avoid attitudes and behavior that would displease or dishonor him.
