334. I have also said that the working of divine providence continues forever, because all angels grow more perfect in wisdom forever. Each of us does so, though, on whatever level of desire for what is good and true we had when we left this world. This is the level that is perfected to eternity. Anything beyond this level is outside an angel, not within, and whatever is outside cannot be developed within. This is the meaning of the good measure, pressed down, shaken, and overflowing, that would be poured into the laps of people who forgave others and were generous to them (Luke 7:37, 38 [Luke 6:37-38]), people who are living good and caring lives.
Divine Love and Wisdom # 90
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].
