What does art is after all only a trace like a footprint which shows one has walked bravely and in great happiness mean?

The saying "Art is after all only a trace like a footprint which shows one has walked bravely and in great happiness" describes art as a person's lasting mark or impression. It is evidence that one has experienced joy, bravery, and life. Art endures as evidence that someone once traveled with courage, fulfillment, and purpose, even though life goes on.