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.
The state of grace is a condition in which all growth is effortless, a transparent, joyful acquiescence that is a general requirement of all existence. Your own body grows naturally and easily from its time of birth, not expecting resistance but taking its miraculous unfolding for granted; using all of itself with great, gracious, creatively aggressive abandon. You were born in a state of grace; it is impossible for you to leave it. You will die in a state of grace . . . You cannot "fall out of" grace, nor can it be taken from you.