Serenity   ~   is a calm and tranquil state of mind that you can attain if you pray ...

God grant me the serenity to accept the things that I cannot change,
courage to change the things that I can change ... and wisdom to know the difference.
Learn to live just one day at a time ... and enjoy each good moment ... one moment at a time.
Accept hardships with patience, because you can trust that God will make all things right
when we endeavor to live in accord with His perfect will.  cf. Romans 8:28-29

Trust in the Lord with all your heart ... and He will direct your paths.  -Proverbs 3:5-6
  Do justly, love mercy, and walk humbly with your God.  -Micah 6:8  more