Swami reminds us here that when we face the battles of life, we are called upon to concentrate our forces and put out the energy to overcome the obstacle (or karma) in front of us. The more battles we fight, the stronger we grow spiritually, and the closer we come to winning our ultimate freedom in God. He also advises us not to dilute our energy by worrying about the outcome of our efforts. If we put all our energy into what we're doing at present, our concentration will be better, and so will the results.