12:6.6

The grandest forms of active force From Tao come, their only source. Who can of Tao the nature tell? Our sight it flies, our touch as well. Eluding sight, eluding touch, The forms of things all in it crouch; Eluding touch, eluding sight, There are their semblances, all right. Profound it is, dark and obscure; Things' essences all there endure. Those essences the truth enfold Of what, when seen, shall then be told. Now it is so; 'twas so of old. Its name--what passes not away; So, in their beautiful array, Things form and never know decay. How know I that it is so with all the beauties of existing things? By this (nature of the Tao).

We look at it, and we do not see it, and we name it 'the Equable.' We listen to it, and we do not hear it, and we name it 'the Inaudible.' We try to grasp it, and do not get hold of it, and we name it 'the Subtle.' With these three qualities, it cannot be made the subject of description; and hence we blend them together and obtain The One. Its upper part is not bright, and its lower part is not obscure. Ceaseless in its action, it yet cannot be named, and then it again returns and becomes nothing. This is called the Form of the Formless, and the Semblance of the Invisible; this is called the Fleeting and Indeterminable. We meet it and do not see its Front; we follow it, and do not see its Back. When we can lay hold of the Tao of old to direct the things of the present day, and are able to know it as it was of old in the beginning, this is called (unwinding) the clue of Tao.

There was something undefined and complete, coming into existence before Heaven and Earth. How still it was and formless, standing alone, and undergoing no change, reaching everywhere and in no danger (of being exhausted)! It may be regarded as the Mother of all things. I do not know its name, and I give it the designation of the Tao (the Way or Course). Making an effort (further) to give it a name I call it The Great. Great, it passes on (in constant flow). Passing on, it becomes remote. Having become remote, it returns. Therefore the Tao is great; Heaven is great; Earth is great; and the (sage) king is also great. In the universe there are four that are great, and the (sage) king is one of them. Man takes his law from the Earth; the Earth takes its law from Heaven; Heaven takes its law from the Tao. The law of the Tao is its being what it is.