For example, in the movie the boy in the stripped pajamas, Bruno a little rich boy, becomes friends with a Jewish boy named schmue, that lives in a concentration camp. Bruno always brings schmuel food because he's starving. Bruno goes through a lot of trouble just to help schmuel live a somewhat better life. Helping someone when they're in a challenging situation makes everything better.
In addition, Night by Elie Wiesel, he tells us he no longer wants to live because of all the horrible things happening during that time period. Elie knew he had to stay alive to help his father conquer the dreadful situation they were