When by a method of concentration one has mastered the mind, one has taken the first step in the accomplishment of a sacred task. Prayer is concentration, reading is concentration, sitting and relaxing and thinking on one subject are all concentration. All artists, thinkers, and inventors have practiced concentration in some form; they have given their minds to one thing, and by focusing on one object have developed the faculty of concentration; but for stilling the mind a special method is necessary which is taught by the mystic, just as a singer is taught by the teacher of voice-production.