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.
My mind is still; my ego has been set at rest. The peace in my heart matches the peace at the heart of nature... No longer am I a feverish fragment of life; I am indivisible from the Whole. I live completely in the present, released from the prison of the past with its haunting memories and vain regrets; released from the prison of the future with its tantalizing hopes and tormenting fears. All the enormous capacities formerly trapped in past and future flow to me here and now, concentrated in the hollow of my palm. No longer driven by the desire for personal pleasure or profit, I am free to use all these capacities to alleviate the suffering of those around me. In living for others I come to life.
~ from CLIMBING THE BLUE MOUNTAIN by Eknath Easwaran