If you feel good—no problems—then you are on your path. When pain or disease comes, then you have challenged yourself to examine/question your path. Obviously, you are uncomfortable, and you are uncomfortable with your path, otherwise, you wouldn’t have pain, you wouldn’t be depressed, or have a problem. From this angle, you don’t have to control life, just figure out why you are unhappy. Spirit problem causes the mind problem, which cause the body problem.

-Grand Master Nan Lu