And the battle of each individual has a different character. The battle depends upon man's particular grade of evolution. Therefore every person's battle in life is different, of a peculiar character. And no person in the world is free from that battle; only one is more prepared for it; the other, perhaps, is ignorant of the law of warfare. And in the success of this battle there is the fulfillment of life. The Bhagavad Gita, the Song Celestial, from the beginning to the end, is a teaching on the law of life's warfare.