In this present age it seems that the knowledge of warfare has developed; but on the other hand the knowledge of peace is absent; for the full knowledge of warfare is both the knowledge of battle and the knowledge of peace. This can be learned according to the mystics by battling with oneself, and by bringing about peace with one's own soul. The life of an individual being is not very different from the Life of the world. An individual person's home is not different from the world. An individual's body and mind and spirit form the whole universe. An individual life can fill the gap between the dawn of creation and the last day. Man does not realize how important is his own life, his self; and the study of his own life and his own self is a study of the greatest importance.