We put thirty spokes to make a wheel: But it is on the hole in the center that the use of the cart hinges. We make a vessel from a lump of clay; But it is the empty space within the vessel that makes it useful. We make doors and windows for a room; But it is the empty spaces that make the room livable. Thus, while existence has advantages, It is the emptiness that makes it useful.
LaoziThe Tao is infinite, eternal. Why is it eternal? It was never born; thus it can never die. Why is it infinite? It has no desires for itself; thus it is present for all beings. The Master stays behind; that is why she is ahead. She is detached from all things; that is why she is one with them. Because she has let go of herself, she is perfectly fulfilled.
Laozi