Cities of the mountain and cities of the plain (Jeremiah 33:13) signify doctrines of charity and faith.

(Odkazy: Arcana Coelestia 2418)

162. XVIII. TIME IN HEAVEN.

Although there is a succession and a progression of all things in heaven, as in the world, yet angels have no notion or idea of time and space; and this so completely that they do not even know at all what time and space are. Time in heaven will here be considered, and space in its own chapter.