The Importance of Rouminating on Events

The reason you keep going back to that event over and over again is because it's troubling to you. And this is why rumination can be unhealthy at some point. It's all right to rehearse events and think about why they're good or bad in your life. But if you don't allow new things to happen, well, then guess what? The emotional salience will decay over time naturally. This is just the way our brain works.