To illustrate what the union of angels and spirits with us is like, I may cite a few memorable instances that will serve to illuminate the subject and enable some conclusions to be drawn. When angels and spirits turn toward us, it seems to them exactly as though our language were their own and that they have no other. This is because they are involved in our language at such times, and do not even remember their own. The moment they turn away from us, though, they are back in their own angelic and spiritual language and have no knowledge whatever of ours. The same thing has happened with me when I have been in the company of angels and in a state like theirs. Then I have talked with them in their language and knew nothing of my own. I could not even remember it. However, the moment I was no longer in their company I was back in my own language.
It is also worth noting that when angels and spirits turn toward us, they can talk with us even from a great distance. They have talked with me from far off just as audibly as though they were nearby. Still, when they turn away from us and talk with each other, nothing of what they say is audible to us even though this is happening right next to our ears. This has enabled me to see that in the spiritual world, all union depends on the way people are facing.
Again, it is worth noting that many of them can talk with one of us at the same time, and that person with them. They send some particular spirit from themselves to the individual with whom they want to talk, and this envoy spirit turns toward the person while the others turn toward their [envoy] spirit and so concentrate their thoughts, which the spirit then presents. It seems to such envoys entirely as though they were talking on their own, and to the others as though they themselves were. So a union of several with one is achieved by the way they face. But we will say more later about these envoy spirits, called agents, and the communication that takes place through them.
from Heaven and Hell, Section 255