Before you determine to do it, you have difficulty, but once you start to do it, you have none. Your effort appeases your inmost desire. There is no other way to attain calmness. Calmness of mind does not mean you should stop your activity. Real calmness should be found in activity itself. We say, "It is easy to have calmness in inactivity, it is hard to have calmness in activity," but calmness in activity is true calmness.