Mythbusters, pt. 3: I Have to Figure Out the Miracle Formula

One of the challenges of so many religious systems being taught today is too much emphasis on ourselves:  if we accomplish enough, if we do enough good, we can obtain miracles or salvation.  Even many Christians feel that if they don't have enough faith, God may not provide miracles.  Is there a formula?  Does your healing or your miracle really depend on what you say or do?