The Tao is abstract,
and therefore has no form,
it is neither bright in rising,
nor dark in sinking,
cannot be grasped, and makes no sound.
Without form or image, without existence,
the form of the formless, is beyond defining,
cannot be described,
and is beyond our understanding.
It cannot be called by any name.
Standing before it, it has no beginning;
even when followed, it has no end.
In the now, it exists; to the present apply it,
follow it well, and reach its beginning.
Taoism - Stan Rosenthal's Tao Te Ching - Translation