…enhance your life by reducing stress and improving decision making.
Your life is the result of actions taken in a series of present moments. What you do in the current moment is what matters. The past is gone and cannot be changed. As I covered in Being Wrong, you should spend enough time thinking about the past to learn from errors, but dwelling there, like obsessing over the future, is a waste of present moments. Additionally, when you perseverate over the past or future you are likely to beat yourself up or succumb to fear. Avoid this mental self-abuse by cultivating the ability to bring yourself back to the present moment where your choices and actions have meaning.