What is essential to practice the Tao is to get rid of cravings and vexations. If these afflictions are not removed, it is impossible to attain stability. This is like the case of the fertile field, which cannot produce good crops as long as the weeds are not cleared away. Cravings and ruminations are the weeds of the mind if you do not clear them away, concentration and wisdom do not develop.
Calmness comes from within. It is the peace and restfulness of the depths of our nature. The fury of storm and of wind agitate only the surface of the sea they penetrate only two or three hundred feet below that is the calm, unruffled deep. To be ready for the great crises of life we must learn serenity in our daily living. Calmness is the crown of self-control.