Consider the man in whom there dwelt a legion of all kinds of devils (Mk. 5:9): they were there though they were not recognized, for their army is of stuff finer and more subtle than the soul itself. That whole army dwelt in a single body.
A hundred times finer and more subtle is the body of the just when they are risen at the resurrection: it resembles a thought that is able, if it wills, to stretch out and expand, or, should it wish, to contract and shrink; if it shrinks, it is somewhere, if it expands, it is everywhere.
The spiritual beings [in Paradise]…are so refined in substance that even thoughts cannot touch them! (The Harp of the Spirit: Eighteen Poems of Saint Ephrem)