That way, you give meaning to life. In the ultimate sense, life has no discernible purpose, no grand plan. We are born into an existence that is joyful and painful, dull and exciting, wonderful and horrible, sensible and crazy. People are the thinking animals, and much of civilization proceeds intelligently. Ethnic groups become paranoid and kill each other, shattering their own happiness, wrecking their own communities and families.
Wars are the ultimate insanity.
About 2,000 raging American men kill their wives or girlfriends every year, then often kill themselves. Nobody gains from this senseless mayhem. It's just the grotesque side of life. Since I don't believe there's a hell waiting to punish the wicked, or a heaven for the virtuous, our behavior has no cosmic meaning. Right and wrong don't exist, outside of human values.