The Serenity Prayer is the common name for a prayer authored by the American theologian, Reinhold Niebuhr. The best-known form is:
God, grant me the serenity to accept the things I cannot change, Courage to change the things I can, And wisdom to know the difference.: https://en.wikipedia.org/wiki/Serenity_Prayer
These are great goals in a mediation.
Learn more about mediation at http://www.center-divorce-mediation.com/ CDM (318) 11/15/16.