17. These three stages comprise: First the mastering of the flesh, then the cleansing of the soul through the living faith which has, of course, to prove itself as alive through works of love, as it would otherwise be dead, and finally the awakening of the spirit from the grave of judgement, for which in the raising of Lazarus from the dead surely the clearest analogy is given. Whoever will ponder a little on this little explanation will find what follows easy to understand.