...There is spiritual light and natural light, one like the other in outward appearance, but dissimilar in internal appearance. For natural light comes from the sun of the natural world..., but spiritual light... is from the sun of the spiritual world.... This light, not nature's, enlightens the human intellect...
 There are three degrees of light in the spiritual world: celestial, spiritual and spiritual-natural. Celestial light is a flaming, ruddy light and is the light of those who are in the third heaven; spiritual light is a gleaming white light and is the light of those in the middle heaven; and spiritual-natural light is like daylight in our world. This is the light of those who are in the lowest heaven and of those in the world of spirits, which is intermediate between heaven and hell; with the good in that world it is like the light of summer on earth and with the evil like winter's light.
It should be known, however, that light in the spiritual world has nothing in common with light in the natural world; they are as different as what is living and what is lifeless. It is plain, then, from what has been said that it is spiritual light and not the natural light before our eyes that enlightens the understanding. Man does not know this, not having known anything hitherto about spiritual light. In the work _Heaven and Hell_ we have shown (nn. 126-140) that spiritual light has its origin in divine wisdom and truth.
Having spoken about the light of heaven, we should say something about the light of hell. This also is of three degrees. The light in the lowest hell is like that from fiery coals; in the middle hell like that from the flame of a hearth; and in the highest hell like that from candles and to some like moonlight at night. All this is spiritual light and not natural, for all natural light is dead and extinguishes the understanding. As has been shown, those in hell possess the faculty of understanding called rationality; rationality itself comes from spiritual light and not from natural light. The spiritual light which they have in rationality is turned, however, into infernal [hellish] light, as the light of day is into the dark of night.
 Nevertheless, all those in the spiritual world, whether in the heavens or the hells, see in their own light as clearly as man sees in his by day. This is because everyone's eyesight is formed to receive the light in which it finds itself. Thus the eyesight of the angels of heaven is formed to receive the light in which they see, and the sight of the spirits of hell is formed to receive their light; this is comparatively like that of birds of night and bats, which see objects at night and in the evening as clearly as other birds see them by day, for their eyes are formed to receive their light.
 The difference between the one light and the other appears very clearly, however, to those who look from one to the other. When, for instance, an angel of heaven looks into hell he sees only thick darkness, and when a spirit of hell looks into heaven he sees only thick darkness there. For heavenly wisdom is like thick darkness to those in hell; in turn, infernal insanity is like thick darkness to those in heaven. It is plain from all this that such as a man's understanding is, such is the light he has, and that after death everyone comes into his own light, for he sees in no other. In the spiritual world, moreover, where all are spiritual even to the body, the eyes of all are formed to see by their own light. Everyone's life-love fashions an understanding for itself and thus a light, also, for love is like the fire of life and from this comes the light of life.
Heaven and Hell, by Emanuel Swedenborg, , tr. by John C. Ager  at sacred-texts.com
...When man enters the other life he is received first by angels, who perform for him all good offices, and talk with him about the Lord, heaven, and the angelic life, and instruct him in things that are true and good. But if the man, now a spirit, be one who knew about these things in the world, but in heart denied or despised them, after some conversation he desires and seeks to get away from these angels. As soon as the angels perceive this they leave him. After some interaction with others he at length unites himself with those who are in evil like his own... When this takes place he turns himself away from the Lord and turns his face towards the hell to which he had been joined in the world, in which those abide who are in a like love of evil. All this makes clear that the Lord draws every spirit to Himself by means of angels and by means of influx from heaven; but those spirits that are in evil completely resist, and as it were tear themselves away from the Lord, and are drawn by their own evil, thus by hell, as if by a rope. And as they are so drawn, and by reason of their love of evil are eager to follow, it is evident that they themselves cast themselves into hell by their own free choice. Men in the world because of their idea of hell are unable to believe that this is so. In fact, in the other life before the eyes of those who are outside of hell it does not so appear; but only so to those who cast themselves into hell, for such enter of their own accord. Those who enter from a burning love of evil appear to be cast headlong, with the head downwards and the feet upwards. It is because of this appearance that they seem to be cast into hell by Divine power... From all this it can be seen that the Lord casts no one into hell, but everyone casts himself into hell, both while he is living in the world and also after death when he comes among spirits...
Divine Providence, by Emanuel Swedenborg, , tr. by William Frederic Wunsch  at sacred-texts.com
... ..._An evil man from himself continually leads himself more deeply into his evils._ He does so "from himself" because all evil is from man, for, as was said, he turns good, which is from the Lord, into evil. He leads himself more and more deeply into evil for the reason, essentially, that as he wills and commits evil, he enters more and more interiorly and also more and more deeply into infernal societies. Hence the enjoyment of evil increases, too, and occupies his thoughts until he feels nothing more agreeable. One who has entered more interiorly and deeply into infernal [hellish] societies becomes like one bound by chains. So long as he lives in the world, however, he does not feel his chains... but after death... those chains... become galling. [causing annoyance or resentment; annoying]