Now, to get something absolutely clear, you must understand that angels are not humans who have died and gone to heaven. Angels are a different kind of being altogether. For most of the Church, angels are pure intelligences (that is they have no physical bodies) and are among God’s first created beings (insofar as we can talk about creation being ordered or taking place in time). Angels are guiding principles of creation. Stratford Caldecott goes so far as to identify the kinds of animals mentioned in Genesis 1.24 (not each specific animal but the fact that God created them of, or according to, every kind) as angels. He writes:
“I am sure the Book of Genesis still contains many mysteries. We read the story of Adam naming the animals, and then we discover that at least one of the animals in the Garden is an angel. The serpent is that creature of God sometimes called the Archangel Lucifer. What if all the animals in the story were angels? In fact, what if the story is about the relationship of the archetypal Man with archetypal Angels: and the archetypal Animals are none other than the angels of tradition” (The Radiance of Being, 54).
(Angels in Creation: Reflections on Our “Older” Siblings for Michaelmas, 9?29/16, by David Russell Mosley)Intelligence behind the manifestation of each thing. A resignation of presence.