Ending Mass on a peaceful note

Looking back, I'm pretty sure that "Let There Be Peace On Earth" was the most frequent closing hymn at the church I attended in the early '80s.  Although the hymn's lyrics are idealistic, its "Let it begin with me" sentiment is a good reminder of the power each individual has to be a force for good.  I don't know how often singing or hearing it has changed anyone's intentions for the better, but it's tempting to believe that it calms people down, at least occasionally.