Words are made up of letters which are symbols of sounds. Words are symbols or verbal vehicles through which meaning is conveyed. We put them together according to rules of grammar and form sentences. It is through words put together into sentences that we convey our fuller thoughts. Our thoughts reflect the inclination of our minds or souls.
Pictures are symbols as well.
Pictures are symbols or visual vehicles through which meaning is conveyed. This is the potential benefit of art. Art can convey love, symmetry, and harmony. Of course, art can convey hatred, confusion, and chaos as well. Pictures have the power to stimulate wonder, awe, and amazement.