Im sorry, in my haste to post i didnt realize that part of my comments were missing. What i posted was not my own. Its a zen story i like and your original post reminded me of it.
I am very very much a believer in letting go of personal wt frustrations but also a believer in helping others out of the org wherever possible. Its a balance between not living in bondage to past wrongs (or carrying the girl) but also not forgetting the reasons to help others still trapped.