What we spend time thinking about matters. How we react to what we are thinking about, and what we feel, matters. How we handle what our minds do moment to moment can help. These insights remind me of the Serenity Prayer. Inherent in that plea for help is a recognition we have to flexibly deal with the trials we face: 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.