Overcome your uncertainties and free yourself from dwelling on sorrow. When you delight in existence, you will awaken, and become a guide to those in need, revealing the path to many.
Clay is fashioned into vessels; it is on their empty hollowness that their use depends. Doors and windows are cut out to make a dwelling, and on the empty space within, its use depends. Thus, while the existence of things may be good, it is the non-existence in them that makes them serviceable.