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.
We must develop and maintain the capacity to forgive. The one who is devoid of the power to forgive is devoid of the power to love. Forgiveness is not an occasional act, it is a permanent attitude.