Letting go of the past is simply making a decision - no longer to allow something from the past to influence your life now or to reduce your inner sense of peace and well being. So all we need to do is to let go of the beliefs and attitudes that prevent us from experiencing the joy of the moment. The problem comes in identifying exactly what that means; we have so many beliefs that prevents us from being in the here and now, from being content and peaceful within.
We need not be guilty of creating a life of happiness. There is no need to hurt those who have limited us in freeing ourselves. And, in some cases, we may need to break free from a career, a job, a relationship, or even family in order to create the life we want. However, most letting go is not usually burning a bridge, but often letting go is an inside job: letting go might mean changing our belief pattern, a way we process emotion, or how we view life.