The sciences, they were further informed, are in themselves spiritual riches, and those who possess them are like those who possess worldly riches, which likewise are means of performing uses to oneself, one's neighbour, and one's country, and are also means of doing evil to them. They are, moreover, like dress, which serves for use and adornment and also for gratifying pride, as with those who would be held in honour for that alone. The spirits of the earth Jupiter understood this perfectly; but they were surprised that, being men, they should stand still in the means, and prefer to wisdom itself such things as only lead to it; and that they did not see, that to immerse the mind in these, and not raise it above them, is to becloud and blind it. 63. A certain spirit ascending from the lower earth came to me, and said that he had heard the things that I had spoken to the other spirits, but did not understand anything of what had been said about spiritual life and its light. Being asked whether he desired to be instructed on the subject, he answered that he had not come with that intention, from which I could conclude that such subjects did not come within his comprehension. He was exceedingly stupid. It was stated by the angels that, when he lived a man in the world, he had been among the most celebrated for his learning. He was cold, as was sensibly felt from his breath; which was a sign that he had no spiritual, but merely natural light (_lumen_); consequently that by means of the sciences he had not opened but closed up for himself the way to the light (_lux_) of heaven. 64. As the inhabitants of the earth Jupiter acquire intelligence for themselves by a different way from that followed by those of our Earth, and as, besides, they are of a different natural disposition in consequence of their life, they cannot be together long, but either shun them or remove them. There are spheres, which are to be called spiritual spheres, which continually emanate, nay, pour forth, from every spirit; they flow from the activity of the affections and the consequent thoughts, consequently from the very life[cc]. All consociations in the other life take place according to the spheres; things that are in agreement are conjoined according to the agreement, and things that disagree are removed according to the disagreement. The spirits and angels who are from the earth Jupiter have relation, in the Grand Man, to the IMAGINATIVE [PART] OF THOUGHT, and thus to an active state of the interior parts; while the spirits of our Earth have relation to the various functions of the exterior parts of the body, and when these desire to have the dominion, the active or imaginative [part] of thought from the interior cannot flow in. Hence the oppositions between the spheres of the life of the two.