The mind can become a receptacle for the knowledge which comes from within. If we look at people, we shall find that among a hundred there are ninety-nine who are creative by nature, but only one who is receptive enough to receive through his intuitive faculties. The difficulty with the mind is that when one wishes to receive, the mind wishes to create; when one wishes to create, then the mind wishes to receive. The Hindus liken the mind to a restive horse. A horse, unless one has put reins on it, will not be controlled and will not go in the direction which one wants it to take. Therefore that wisdom which is like the essence of life and which is to be found within oneself can only be attained by first making the mind obedient; and this can be done by concentration. People will easily understand if one tells them about voice production, how necessary it is in order to sing well to train the voice; also they can easily understand why it is necessary to learn physical culture in order to make the muscles strong; but when it comes to training the mind a person asks, in the first place, "Is there a mind? " I thought that there was only a brain", and even if he happens to believe in the mind, he does not know what can be done with it.