To awaken means to realize one's nothingness, that is, to realize one's complete and absolute mechanicalness, and one's complete and absolute helplessness. And it is not sufficient to realize it philosophically in words. It is necessary for us to realize it in clear, simple and concrete facts, in our own facts.
Until we reach the stage of realizing our own nothingness, we cannot change. To begin to realize one's own nothingness as a practical experience is to begin to cease identifying with oneself.
As humans we respond to symbols. We express divine Beauty and insight in our art. If there is a preponderance of art depicting angels with wings, obviously this symbolizes something real within the collective consciousness. Angels appear to humans according to human capacity to accept and understand the appearance. The angels inspire, and that is what is left in our heart after an angel experience.