The soul is the piece of your consciousness that has moral worth and bears moral responsibility. A river is not morally responsible for how it flows, and a tiger is not morally responsible for what it eats. But because you have a soul, you are morally responsible for what you do or don’t do. Because you have this essence inside of you, as the philosopher Gerald K. Harrison put it, your actions are either praiseworthy or blameworthy. Because you have this moral piece in you, you are judged for being the kind of person you are, for the thoughts you think and the actions you take.