Romans 5:3-5
And not only that, but we also boast in our sufferings, knowing that suffering produces endurance, and endurance produces character, and character produces hope, and hope does not disappoint us.

I can understand learning how to deal with my sufferings, but boasting about them? What kind of prayer life must it take to produce an attitude of joy regarding our sufferings? List the three best moments of your life. List the three worst moments of your life. What, if anything, did you learn?