PASSIONAL LOVE IS TWOFOLD.
To begin with passion, it is a matter of common knowledge that the passion designated as love is born in the souls which desire to unite themselves to a beautiful object. But its object may be either a shameful practice, or one (worthy to be pursued by) temperate men, who are familiar with beauty. We must, therefore, investigate in a philosophical manner what is the origin of both kinds of love.
LOVE IS RECOGNITION OF HIDDEN AFFINITY.
The real cause of love is fourfold: the desire of beauty; our soul's innate notion of beauty; our soul's affinity with beauty, and our soul's instinctive sentiment of this affinity.[116] (Therefore as beauty lies at the root of love, so) ugliness is contrary to nature and divinity. In fact, when Nature wants to create, she contemplates what is beautiful, determinate, and comprehended within the (Pythagorean) "sphere" of the Good. On the contrary, the (Pythagorean) "indeterminate"[115] is ugly, and belongs to the other system.[117] Besides, Nature herself owes her origin to the Good, and, therefore, also to the Beautiful. Now, as soon as one is attracted by an object, because one is united to it by a secret affinity, he experiences for the images of this object a sentiment of sympathy. We could not explain its origin, or assign its cause on any other hypothesis, even were we to limit ourselves to the consideration of physical love. Even this kind of love is a desire to procreate beauty,[118] for it would be absurd to insist that that Nature, which aspires to create beautiful things, should aspire to procreate that which is ugly.
EARTHLY BEAUTY IS AN IMAGE OF INTELLIGIBLE BEAUTY.
Of course, those who, here below, desire to procreate are satisfied in attaining that which is beautiful here below: namely, the beauty which shines in images and bodies; for they do not possess that intelligible Beauty which, nevertheless, inspires them with that very love which they bear to visible beauty. That is the reason why those who ascend to the reminiscence of intelligible Beauty love that which they behold here below only because it is an image of the other.[119] As to those who fail to rise to the reminiscence of the intelligible Beauty, because they do not know the cause of their passion, they mistake visible beauty for that veritable Beauty, and they may even love it chastely, if they be temperate: but to go as far as a carnal union is an error, in any case. Hence, it happens that only he who is inspired by a pure love for the beautiful really loves beauty, whether or not he have aroused his reminiscence of intelligible Beauty.
BEAUTY IS IMMORTAL.
They who join to this passion as much of a desire for immortality as our mortal nature admits, seek beauty in the perpetuity of the procreation which renders man imperishable. They determine to procreate and produce beauty according to nature; procreating because their object is perpetuity; and procreating beautifully because they possess affinity with it. In fact, perpetuity does bear affinity to beauty; perpetual nature is beauty itself; and such also are all its derivatives.
PASSIONAL LOVE MAY BE ELEVATING, THOUGH OPEN TO MISLEADING TEMPTATIONS.
Thus he who does not desire to procreate seems to aspire to the possession of the beautiful in a higher degree. He who desires to procreate does no doubt desire to procreate the beautiful; but his desire indicates in him the presence of need, and dissatisfaction with mere possession of beauty; He thinks he will be procreating beauty, if he begets on that which is beautiful. They who wish to satisfy physical love against human laws, and nature, no doubt have a natural inclination as principle of a triple passion; but they lose their way straying from the right road for lack of knowledge of the end to which love was impelling them, of the goal of the aspiration (roused by) the desire of generation, and of the proper use of the image of beauty.[120] They really do ignore Beauty itself. They who love beautiful bodies without desiring to unite themselves to them, love them for their beauty only. Those who love the beauty of women, and desire union with them, love both beauty and perpetuity, so long as this object is not lost from sight. Both of these are temperate, but they who love bodies for their beauty only are the more virtuous. The former admire sensual beauty, and are content therewith; the latter recall intelligible beauty, but, without scorning visible beauty, regard it as an effect and image of the intelligible Beauty.[121] Both, therefore, love beauty without ever needing to blush. But, as to those (who violate laws human and divine), love of beauty misleads them to falling into ugliness; for the desire of good may often mislead to a fall into evil. Such is love considered as a passion of the soul.