The story of what has happened in my past does not change. But the power I give to it has changed. I have stopped justifying the anger because life is much happier with resentment and the time spent in trying to remember the details. Unfortunately, sometimes events from the past have a mind of their own. Maybe there are people who make it difficult for your to forget your past and move on. Memories keep recirculating when all you want is for them to disappear! It is not easy to take responsibility for your own happiness but when you do, what is revealed is happiness and peace.
When you think about it, the past isn't really about the past. Memories of events are thoughts that are occurring in the now, the present. Anger or hurt about the past happens now. It is how you present the moment experience that keeps the past alive. What is amazing about this understanding is that the way out of suffering is your attitude about the present. Healing from the past means that we put all of our attention into the present.
A memory is a thought and think about it, does it really have a power over us? We have many happy memories that make us happy and we have memories that may make us sad. Thinking about my son that passed away can make me sad and happy at the same time. Some memories can have an emotional reaction that can stay stuck. These are the memories to be careful of because they can make you think of them over and over and over. If you want to be free of the past, lose interest in those emotional memories. It does not serve to repeat them and thinking that they are justified. Try and replace with the happy memories that can make the present wonderful and at peace.