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.
When a gong or "singing bowl" is struck in the silent stillness, a reverberating sound is suddenly born...it lingers briefly...decays and dies. The sound can represent the span of our life-experience, but never our Life. Our true self is not the perishable sound, but the imperishable, still silence from which the sound arose and resonated temporarily. Indeed, this truth has even greater depths for it may be understood, that in our essence, we are none other than That which strikes the gong, so to speak, and silently witnesses the resulting "sound."