Where is the boundary between your thoughts and feelings and my thoughts and feelings? Where does it end - the outer layer of epidermis? If you look at the body as energy - not matter - maybe there's a possibility we as human beings are more connected to one another than we realize.
I believe that the making of art is primarily for the benefit of the artist. If what the artist has created communicates messages and feelings to others, then it is because of the universality of the human experience that is speaking through the work of art.