3493. And his eyes were dim that he could not see. That this signifies when the rational desired to enlighten the natural with the Divine, is evident from the signification of “eyes,” as being the interior or rational sight (see n. 2701); and from the signification of “seeing,” as being to perceive and understand (n. 2150, 2325, 2807); hence when the eyes are said to be dim,” it signifies that there is no longer any perception, here, no perception of those things which are in the natural; and this being the signification of these words, it is signified that the rational desired to enlighten the natural with the Divine. How the case herein is may be seen from what has been said and shown before concerning the rational and natural in man when he is being regenerated, namely, that the rational is regenerated before the natural, for the reason that the rational is more interior and thus nearer to the Divine; and also because it is purer, and thus fitter to receive the Divine than is the natural; and further because the natural is to be regenerated through the rational, as may be seen above (n. 3286, 3288, 3321).

[2] When therefore the rational has been regenerated and not the natural, the former appears to itself to be dim-sighted, because there is not correspondence; for the rational has its sight from the light of heaven, and the natural has its sight from the light of the world; and unless there is correspondence, the rational can see nothing which is in the natural, all therein being to it as shade, or even as thick darkness. But when there is correspondence, then the things in the natural appear to the rational in light, because the things which are of the light of the world are then enlightened by those which are of the light of heaven, and thereupon become as it were translucent. But these things appear better from what has been before said and shown concerning correspondence (n. 2987, 2989, 2991, 2996, 3002, 3138, 3167, 3222, 3223, 3225, 3337, 3485). Hence it may in some sort be apprehended that by the words, “the eyes of Isaac were dim that he could not see,” is signified that the rational desired to enlighten the natural with the Divine, that is, to make it also Divine, for in the supreme sense the Lord is treated of; which may consequently be illustrated by what takes place with man when being regenerated, as before mentioned, for the regeneration of man is an image of the Lord’s glorification (n. 3043, 3138, 3212, 3296, 3490).

3223. There are two lights whereby man is enlightened-the light of the world, and the light of heaven. The light of the world is from the sun; the light of heaven is from the Lord. The light of the world is for the natural or external man, thus for those things which are in him, and although the things which are therein do not appear to be of this light, they nevertheless are so; for nothing can be comprehended by the natural man except by such things as come forth and appear in the solar world, thus except they have somewhat of form from the light and shade therein. All ideas of time and ideas of space, which are of so much account in the natural man that he cannot think without them, are also of the light of the world. But the light of heaven is for the spiritual or internal man. Man’s interior mind, in which are his intellectual ideas that are called immaterial, is in this light. Man is unaware of this, although he calls his intellect sight, and ascribes light to it; the reason is that so long as he is in worldly and corporeal things he has a perception only of such things as are of the light of the world, but not of such things as are of the light of heaven; the light of heaven is from the Lord alone, and the universal heaven is in this light.

[2] This light (namely, that of heaven) is immensely more perfect than the light of the world; the things which in the light of the world make one ray, in the light of heaven make myriads; within the light of heaven there are intelligence and wisdom. This light is that which flows into the light of the world which is in the external or natural man, and causes him to perceive sensuously the objects of actual things; and unless this light flowed in, man could not have any perception, for the things which are of the light of the world derive from it their life. Between these lights, or between the things which are in the light of heaven and those in the light of the world, there exists a correspondence when the external or natural man makes one with the internal or spiritual man, that is, when the former is subservient to the latter; and the things which then come forth in the light of the world are representative of such things as come forth in the light of heaven.