Can a man consciously reject what he doesn’t understand? If he never consciously subscribed to a heresy, how can he conscientiously reject it now? If a man cannot distinguish between false heresy and true dogma, why should he sign anything? How much catechesis can a man take? Just enough to repeat dogma? Would we catechize a parrot? The answer lies in a man’s heart, the core of his soul. Here, a man senses spiritual life from spiritual death. He does so by the grace of the Holy Spirit. The sensate knowledge in the depths of his heart is transferred to his nous, and from there it is noetically interpreted into forms and symbols which are intelligible to his dianous, his mind. Now he is able to conjugate further pictorial symbols and verbal formulae in a rational way. Now he can sign statements. A man first needs the illumination of the Holy Spirit before he can sign any libellum.