321. We need to realize that to all outward appearances, the spiritual world is just like the physical world. You can see lands there, mountains, hills, valleys, plains, fields, lakes, rivers, and springs like the ones in our earthly world; everything, then, that belongs to the mineral kingdom. You can see parks as well, gardens, groves, and woods, with all kinds of trees and shrubs with their fruits and seeds, smaller plants, flowers, herbs, and grasses; everything, then, that belongs to the plant kingdom. You can see all kinds of animals, birds, and fish--everything that belongs to the animal kingdom. The people there are angels and spirits.

This is prefaced to let it be known that the whole spiritual world is just like the whole physical world, the sole difference being that things there are not static and stable the way they are in a physical world because there is nothing of nature there. Everything is spiritual.

202. There are three heavens in the spiritual world, arranged by vertical levels. The angels in the highest heaven are better in every respect than those of the intermediate heaven, and the angels in the intermediate heaven are better in every respect than those of the lowest heaven. Because of these levels of perfection, angels of the lowest heaven cannot even approach the threshold of the perfection of angels of the intermediate heaven, and these latter in turn cannot approach the threshold of the perfection of angels of the highest heaven. This may appear paradoxical, but it is the truth. The reason is that they are grouped by distinct levels and not by gradual ones.

Experience has taught me that there is such a difference between angels of the higher and lower heavens in feelings and thoughts and therefore in speech that they have nothing in common. Communication happens only by the correspondences that arise through the Lord's direct inflow into all the heavens and the indirect inflow through the highest heaven to the lowest.

Because of the nature of these distinctions, they cannot be expressed in earthly language, so I cannot describe them. Angels' thoughts do not fit into earthly concepts because they are spiritual. They can only be expressed and described by angels in their own language and words and writing, but not in human ones. This is why it says that people have heard and seen indescribable things in the heavens.

The following may afford some understanding of these differences. The thoughts of angels of the highest or third heaven are thoughts of purposes; the thoughts of angels of the intermediate or second heaven are thoughts of means; and the thoughts of angels of the lowest or first heaven are thoughts of results. It is important to realize that it is one thing to think on the basis of purposes and another to think about purposes, one thing to think on the basis of means and another to think about means, one thing to think on the basis of results and another to think about results. Angels of the lower heavens do think about means and about purposes; but angels of the higher heavens think on the basis of means and on the basis of purposes. Thinking on the basis of such things comes from a higher level of wisdom, while thinking about them comes from a lower level. Thinking on the basis of purposes comes from wisdom; thinking on the basis of means comes from intelligence; and thinking on the basis of results comes from being informed.

We can see from this that all processes of perfection rise and fall by and according to levels.