All human achievement comes about through bodily activity. All bodily activity is caused, controlled and directed by the mind. To these two fundamental propositions we now append a third, which needs no proof, but follows as a natural and logical conclusion from the other two: The Mind is the instrument you must employ for the accomplishment of any purpose. Three Postulates for this Course With these three fundamental propositions as postulates, it will be the end and aim of this Course of Reading to develop plain, simple and specific methods and directions for the most efficient use of the mind in the attainment of practical ends.