Wu: Nothingness, Emptiness, Non-Existence

“Wu is nothingness, emptiness, non-existence

Thirty spokes of a wheel all join at a common hub
yet only the hole at the center
allows the wheel to spin
Clay is molded to form a cup
yet only the space within
allows the cup to hold water
Walls are joined to make a room
yet only by cutting out a door and a window
can one enter the room and live there

Thus, when a thing has existence alone
it is mere dead-weight
Only when it has wu, does it have life”

~ Lao Tzu