Tao can be talked about, but not the Eternal Tao.
Names can be named, but not
the Eternal Name.
As the origin of
heaven-and-earth, it is nameless:
As “the Mother” of all
things, it is namable.
So, as ever hidden, we
should look at its inner essence:
As always manifest, we
should look at its outer aspects.
These two flow from the same
source, though differently named:
And both are called
mysteries.
The Mystery of mysteries is
the Door of all essence.