When the eyes are looking at a certain object and the mind is thinking of something else, this must naturally create a collision; for two activities going on at the same time in different directions, having no touch of harmony, must of themselves fail to prove successful, since conflict is a breach of the law of perfection. No one can concentrate better than a real artist, and no one can become great in art without developing concentration of mind. Both mind and body act and react upon each other, so as art helps concentration, so concentration helps art.