Another side of this question is that imagination also helps concentration. As soon as a person has imagined a running stream, he also imagines the rocks near by and the beautiful scenery which is round the spring. From this we learn that concentration is not only something that is practiced by a mystic or a philosopher, but everybody--in business, in his art, in industry--practices concentration to some extent. At the same time it is concentration which makes a person a genius, it is concentration which brings success, and it is concentration which is the mystery of the accomplishment of all things.