Art in the beginning was the process of human beings, and therefore a synonym of science. Today, the essence of art can be seen in the expression of human creativity. Art can also be interpreted by humans invented something that contains elements of beauty.
Art is very difficult to explain and also hard to assess. That each individual artist to choose their own rules and parameters that lead him or his work, can still be said that art is a process and product of selecting the medium, and a set of rules for the use of the medium.
A set of values that determine what is appropriate to send it through the medium of expression, to convey both beliefs, ideas, sensations, or feelings in a way as effectively as possible to the medium. Even so, many artists influenced by other people of the past, and also some guidelines have emerged to reveal certain ideas through symbolism and forms (such as a meaningful death lilies and red roses mean love that).