If I may, Paul seems to be saying that depicting the HUMANITY of Christ is not a bad thing because the IMMATERIAL (i.e. the personality of the divine Son) cannot be catpured. So when he watches the Passion, or looks at a crucifix, he has to make the mental leap of taking the object and inserting, in his mind, the divine part (the knowledge that the personality is of the divine Son) that the object cannot convey. In his mind, then, Christ remains complete because he knows the crucifix is really not Jesus.
Paul, are we on track with your thought?