90. Since angels are spiritual beings, they cannot live in any warmth or any light that is not spiritual. We, on the other hand, cannot live in any warmth or any light that is not physical. This is because what is spiritual suits what is spiritual, and what is physical suits what is physical. If angels were to depend on physical warmth and light to even the least extent, they would be destroyed. It is absolutely wrong for their life.

Each of us is a spirit, as far as the inner levels of our minds are concerned. When we die, we leave this world of nature completely behind. We give up everything it has to offer and enter a world that contains nothing proper to the world of nature. In that world we live so completely distanced from nature that there is no communication along a continuum, that is, nothing like degrees of purity or coarseness. It is a case of before and after, with no communication except by correspondences.

It stands to reason, then, that spiritual warmth is not a purer form of physical warmth, that spiritual light is not a purer form of physical light, but that they are completely different in essence. Spiritual warmth and light derive their essence from a sun that is nothing but love, a sun that is life itself, while physical warmth and light derive their essence from a sun that is nothing but fire, containing no life whatever, as I have already stated [89].

212. That the last degree embraces, contains, and is the foundation of the prior degrees is clearly apparent from the progression of ends and causes to effects. Enlightened reason can comprehend that the effect embraces, contains, and is the foundation of its causes and ends, but it does not so clearly see that the end with all of its constituents, and the cause with all of its constituents, are actually present in the effect, so that the effect embraces them in their entirety.

That such is the case can be seen from what we have said previously in this part of the work, especially from the following, that one element follows after another in a threefold progression, and that effect is nothing but the end in its final form. Moreover, because the final form embraces the rest, it follows that the final form contains them and is also their foundation.