We have all done things that we regret and felt guilty, angry, or sad about. These emotional reactions, and the experience of regret in general, are not necessarily bad. In fact, they are evidence that we have a moral code or a sense of ethics that defines us. Instead, it is our response to regret that often causes unnecessary problems. Guilt and related negative emotions are stagnant. But you don't need to be ruled by guilt and what has passed. We...