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.
We were made to enjoy music, to enjoy beautiful sunsets, to enjoy looking at the billows of the sea and to be thrilled with a rose bedecked with dew... Human beings are actually created for the transcendent, for the sublime, for the beautiful, for the truthful ... and all of us are given the task of trying to make this world a little more hospitable to these beautiful things.