421. (17) If they are not elevated together, love or the will is defiled in and by the intellect. This follows, since if love is not elevated, it remains impure, as we said in nos. 419, 420 above. And as long as it remains impure, it loves things that are impure, such as the practices of vengeance, hatred, deceit, blasphemy, and adultery. For these are then its affections, which we call lusts, and it rejects things having to do with charity, justice, honesty, truthfulness, and chastity. As for the statement that love is defiled in and by the intellect, it is defiled in the intellect when love is affected by those impure practices, and it is defiled by the intellect when love causes matters of wisdom to become its servants, and still more when it perverts, falsifies and adulterates them. Concerning the circumstance of the heart or its blood that corresponds to this in the lungs, we need say no more than what we have already said in no. 420 above-only that instead of a purification of the blood, a pollution of it takes place, and that instead of a nourishment of the blood with fragrances, a nourishment of it with stenches occurs, just as is the case in heaven and in hell.