There is a saying in the East, 'Do not invoke the name of Satan, or else he will rise from his grave'. An inconsiderate or thoughtless person often falls into the error of awakening that devil even if he is asleep, for he does not know the music of life. In order to live in the world one should become a musician of life. Every person therein is a note; and when one feels that way, then one has an instrument in one's hand. The whole world is like an orchestra by which a symphony is to be played.