245. The nature of the influx of light into the three degrees of life in man which belong to his mind, shall now be shown. The forms which are receptacles of heat and light, that is, of love and wisdom in man, and which (as was said) are in threefold order or of three degrees, are transparent from birth, transmitting spiritual light as crystal glass transmits natural light; consequently in respect to wisdom man can be raised even into the third degree. Nevertheless these forms are not opened except when spiritual heat conjoins itself to spiritual light, that is, love to wisdom; by such conjunction these transparent forms are opened according to degrees. It is the same with light and heat from the sun of the world in their action on plants on the earth. The light of winter, which is as bright as that of summer, opens nothing in seed or in tree, but when vernal heat conjoins itself to that light then the heat opens them. There is this similarity because spiritual light corresponds to natural light, and spiritual heat to natural heat. 246. This spiritual heat is obtained only by fleeing from evils as sins, and at the same time looking to the Lord; for so long as man is in evils he is also in the love of them, for he lusts after them; and the love of evil and the lust, abide in a love contrary to spiritual love and affection; and such love or lust can be removed only by fleeing from evils as sins; and because man cannot flee from evils from himself, but only from the Lord. He must look to the Lord. So when he flees from evils from the Lord, the love of evil and its heat are removed, and the love of good and its heat are introduced in their stead, whereby a higher degree is opened; for the Lord flowing in from above opens that degree, and then conjoins love, that is, spiritual heat, to wisdom or spiritual light, from which conjunction man begins to flourish spiritually, like a tree in spring-time. 247. By the influx of spiritual light into all three degrees of the mind man is distinguished from beasts; and, as contrasted with beasts, he can think analytically, and see both natural and spiritual truth; and when he sees them he can acknowledge them, and thus be reformed and regenerated. This capacity to receive spiritual light is what is meant by rationality (referred to above), which every man has from the Lord, and which is not taken away from him, for if it were taken away he could not be reformed. From this capacity, called rationality, man, unlike the beasts, is able not only to think but also to speak from thought; and afterwards from his other capacity, called freedom (also referred to above), he is able to do those things that he thinks from his understanding. As these two capacities, rationality and freedom, which are proper to man, have been treated of above (n. 240), no more will be said about them here. 248. UNLESS THE HIGHER DEGREE WHICH IS THE SPIRITUAL IS OPENED IN MAN, HE BECOMES NATURAL AND SENSUAL.