Find the Center Within

"Thirty spokes join together in the hub.
It is because of what is not there that the cart is useful.
Clay is formed into a vessel.
It is because of its emptiness that the vessel is useful.
Cut doors and windows to make a room.
It is because of its emptiness that the room is useful.
Therefore, what is present is used for profit.
But it is in absence that there is usefulness."

- Tao Te Ching, #11
Translated by Charles Muller