Shape clay into a vessel;
It is the space within that makes it useful.
Cut doors and windows for a room;
It is the holes which make it useful.
Therefore benefit comes from what is there;
Usefulness from what is not there.
The sage wears clothes of coarse cloth but carries jewels in his bosom; He knows himself but does not display himself; He loves himself but does not hold himself in high esteem.
Look, and it can't be seen.
Listen, and it can't be heard.
Reach, and it can't be grasped.
Above, it isn't bright.
Below, it isn't dark.
Seamless, unnamable,
it returns to the realm of nothing.
Form that includes all forms,
image without an image,
subtle, beyond all conception.
Approach it and there is no beginning;
follow it and there is no end.
You can't know it, but you can be it,
at ease in your own life.
Just realize where you come from:
this is the essence of wisdom.