The past serves as a tool for learning by the choices that we
   have made. It also can be a weight that holds us back if we can’t
   let go of either the mistakes we have made or the memories that
   we have. The most common thing that holds us back is a memory
   of a tragic circumstance or a failure that we feel responsible for.
  Remembering such things are not designed to hold us back,
  instead they are for the purpose of healing. Sometimes it takes 
  having forgiveness for the things we have done as much as for the
   actions of others.

    Some things are just circumstances that we could not control
   and we want to hold our selves at fault for them. We should
   remember that the past is the past and that we need to forgive
   and forget so we can live life instead of reliving  the past.