This is also why in the spiritual world one individual is present to another if only that presence is intensely desired. This is because one person sees another in thought in this way and identifies with that individual’s state. Conversely, one person moves away from another to the extent that there is any sense of reluctance; and since all reluctance comes from an opposition of affections and disagreement of thoughts, there can be many people appearing together in one place as long as they agree, but as soon as they disagree, they vanish.
Whenever people move from one place to another, whether it is within their town, in their courtyards, in their gardens, or to people outside their own community, they get there more quickly if they are eager to and more slowly if they are not. The path itself is lengthened or shortened depending on their desire, even though it is the same path. I have often seen this, much to my surprise.
We can see from all this again that distance and space itself depend wholly on the inner state of angels; and since this is the case, no notion or concept of space can enter their minds even though they have space just the way we do in our world.
We can illustrate this by our own thoughts, which are also devoid of space; for whatever we focus on intently in our thought is seemingly present. Then too, anyone who reflects on it realizes that our eyesight registers space only through the intermediate objects on earth that we see at the same time, or from our knowing from experience that things are a certain distance away.
This is because we are dealing with a continuum, and in a continuum there is no apparent distance except by means of discontinuities. This is even more the case for angels because their sight acts in unison with their thought, and their thought in unison with their affection, and also because things seem near or remote, and things change, in response to the states of their deeper natures, as already noted.
from The Lives of Angels and also from Heaven and Hell, Sections 194-196