43. Man possesses two faculties, one of which is called the will, and the other the Understanding. They are distinct from each other, but are so created that they may be a one, and when they are a one they are called the Mind, so that the human mind consists of these two faculties, and the whole of man's life is in them. Just as all things in the universe that are in accordance with Divine order bear relation to good and truth, so do all things in man bear relation to the will and the understanding; for the good in a man belongs to his will and the truth in him belongs to his understanding, these two faculties being their receptacles and subjects; the will, of all things of good, and the understanding of all things of truth. The goods and truths in a man are nowhere else, and so therefore neither are the love and faith, because love is of good and good is of love, and faith is of truth and truth is of faith. It is of the utmost importance to know how the will and the understanding make one mind. They do so in the same way that good and truth make a one, for there is a like marriage between the will and the understanding to that which exists between good and truth. The nature of this latter marriage has been in some measure told in the preceding chapter, and to this we should add that just as good is the very being [esse] of a thing, and truth is its derivative manifestation [existere], so the will in man is the very being of his life, and the understanding is its derivative manifestation, for the good that is of the will shapes itself forth in the understanding, and presents itself to view within fixed and settled outlines [certo modo].