Chapter one of Toa Te Ching:-
道 可 道 ， 非 常 道 。 名 可 名 ， 非 常 名 。
無 名 天 地 之 始 ﹔ 有 名 萬 物 之 母 。
故 常 無 ， 欲 以 觀 其 妙 ﹔ 常 有 ， 欲 以 觀 其 徼 。
此 兩 者 ， 同 出 而 異 名 ， 同 謂 之 玄 。
玄 之 又 玄 ， 眾 妙 之 門 。
The first chapter is the most important of them all. Some say if you understand the first chapter, there is no reason to read the rest.
The Tao that can be named, is not the true Tao.
It is everything you see, and everything you can not.
It is the formula of how all beings are created, and how it disintegrates.
It is the source of non-being, and the materialization of being. It may bare different names, but they are one.
We live in a materialistic (being) world. It is a world of comparison. If there is high then there is low. If there is long then there is short. We live in a world where we can not escape judging and being judged. Because there is always something to compare to.
Tao can not be named because it is not comparable. It is the mathematics of how everything works. From everything you can see, to everything you can not.
It is the very formula of how we breathe, how we make and how we destroy. It is the very web that the universe expands on, and links every object to one origin.
Learn the flow and frequency of Tao, as it is resonates through all dimensions. One who accepts, learns and follow the web will find oneself one with the origin.