Part of being human is to experience moments of true perception about those things that touch you so intimately that suddenly you see. What you see (or read or hear) at such moments has a ring of truth about it, not just of a general kind but as something that takes on a dimension and depth for you so that it becomes your truth. It seems to be making a claim on you. Such moments don't come often. Hold on to them. Cherish them until they become so much a part of you as to be second nature. For there is only one persistent demand made upon us by the Spirit. It is that we are receptive. That we keep our eyes open, our minds unclosed. It is, in short, that we retain all our lives our sense of wonder.
To study angels is to shed light on ourselves, especially those aspects of ourselves that have been put down in our secularized civilizations, our secularized educational systems, and even our secularized worship system. By secularization, I mean anything that sucks the awe out of things.