Jonathan Pageau discusses cosmology in icons in the third article in his series at Orthodox Arts Journal.
One of the main purposes of the icon, in its imitation of our Lord himself, is to participate in connecting Heaven and Earth. By making visible in earthly terms — in people, events and things — a glimpse of heavenly truth, they lead us towards the transfiguration of the world. This transfiguration is beyond words of course, but like all mystical truth, we can nonetheless skirt around it, point to the edges of this vision in order to help us participate in it more fully.
This possibility of uniting Heaven and Earth is anchored in the Christological definitions of the Church, in the duality of . . .