Art is the representation of an idea that is left to the viewers to explore. It is the suggestion of a thought. A muse of concepts. A seed. The forge of a stream of consciousness and involuntary artistic development that materializes in the lives of the viewers.
As you are creating art what you are doing is planting the seed and starting a process that will finish only when your work will be forgotten. And when you look at a painting or drawing or sculpture, you are continuing the development of the piece. You become the artist and you are carrying forward the torch of artistic expression of the piece.
This fundamental nature makes art a process without end goal which value is in its constant development.