93. The reason why conjugial love also is from this same source, is, because that sphere flows into the form of wisdom with men, and also with angels; for a man may increase in wisdom to the end of his life in the world, and afterwards to eternity in heaven; and in proportion as he increases in wisdom, his form is perfected; and this form receives not the love of the sex, but the love of one of the sex; for with one of the sex it may be united to the inmost principles in which heaven with its felicities consists, and this union is conjugial love. 94. VI. THE LOVE OF THE SEX BELONGS TO THE EXTERNAL OR NATURAL MAN, AND HENCE IT IS COMMON TO EVERY ANIMAL. Every man is born corporeal, and becomes more and more interiorly natural, and in proportion as he loves intelligence he becomes rational, and afterwards, if he loves wisdom, he becomes spiritual. What the wisdom is by which a man becomes spiritual, will be shewn in the following pages, n. 130. Now as a man advances from knowledge into intelligence, and from intelligence into wisdom, so also his mind changes its form; for it is opened more and more, and conjoins itself more nearly with heaven, and by heaven with the Lord; hence it becomes more enamored of truth, and more desirous of the good of life. If therefore he halts at the threshold in the progression to wisdom, the form of his natural mind remains; and this receives the influx of the universal sphere, which is that of the marriage of good and truth, in the same manner as it is received by the inferior subjects of the animal kingdom--beasts and birds; and as these are merely natural, the man in such case becomes like them, and thereby loves the sex just as they do. This is what is meant by the assertion,--the love of the sex belongs to the external or natural man, and hence it is common to every animal. 95. VII. BUT CONJUGIAL LOVE BELONGS TO THE INTERNAL OR SPIRITUAL MAN; AND HENCE THIS LOVE IS PECULIAR TO MAN. The reason why conjugial love belongs to the internal or spiritual man is, because in proportion as a man becomes more intelligent and wise, in the same proportion he becomes more internal and spiritual, and in the same proportion the form of his mind is more perfected; and this form receives conjugial love: for therein it perceives and is sensible of a spiritual delight, which is inwardly blessed, and a natural delight thence arising, which derives its soul, life, and essence from the spiritual delight.