that a man can turn himself to whichever sphere he pleases; but that so far as he turns himself to the one, so far he turns himself from the other, n. 438: for the meaning of spheres, see n. 434, and the passages there cited. The reason why the sphere of the lust of fornication is a middle sphere between those two spheres, and makes an equilibrium, is, because while any one is in it, he can turn himself to the sphere of conjugial love, that is, to this love, and also to the sphere of the love of adultery, that is, to the love of adultery; but if he turns himself to conjugial love, he turns himself to heaven; if to the love of adultery, he turns himself to hell: each is in the man’s free determination, good pleasure, and will, to the intent that he may act freely according to reason, and not from instinct: consequently that he may be a man, and appropriate to himself influx, and not a beast, which appropriates nothing thereof to itself. It is said the lust of fornication such as it is in the beginning, because at that time it is in a middle state. Who does not know that whatever a man does in the beginning, is from concupiscence, because from the natural man? And who does not know that that concupiscence is not imputed, while from natural he is becoming spiritual? The case is similar in regard to the lust of fornication, while a mans’ love is becoming conjugial.
456. XI. Care is to be taken lest, by immoderate and inordinate fornications, conjugial love be destroyed. By immoderate and inordinate fornications, whereby conjugial love is destroyed, we mean fornications by which not only the strength is enervated, but also all the delicacies of conjugial love are taken away; for from unbridled indulgence in such fornications, not only weakness and consequent wants, but also impurities and immodesties are occasioned, by reason of which conjugial love cannot be perceived and felt in its purity and chastity, and thus neither in its sweetness and the delights of its prime; not to mention the mischiefs occasioned to both the body and the mind, and also the disavowed allurements, which not only deprive conjugial love of its blessed delights, but also take it away, and change it into cold, and thereby into loathing. Such fornications are the violent excesses whereby conjugial sports are changed into tragic scenes: for immoderate and inordinate fornications are like burning flames which, arising out of ultimates, consume the body, parch the fibres, defile the blood, and vitiate the rational principles of the mind; for they burst forth like a fire from the foundation into the house, which consumes the whole. To prevent these mischiefs is the duty of parents; for a grown up youth, inflamed with lust, cannot as yet from reason impose restraint upon himself.
457. XII. Inasmuch as the conjugial principle of one man with one wife is the jewel of human life and the reservoir of the Christian religion. These two points have
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