Be careful what you ask for!
*Drags out soapbox*
To me, Buddhism and Taoism mark an interesting turning point in how people viewed the observable, and attempted to understand it. Even though the two are not linked in any meaningful way, they both attempt to understand a concept that is a key part of modern science, that of emergent processes.
Up until only fairly recently, everything that could be observed was considered an object or a thing, and our languages clearly reflect this. We talk about "the fire" or "the wind", even though we now know that there really isn't a thing called "fire", but a complex chemical process. Similarly, we are coming to the conclusion that "life" and "self" aren't things in and of themselves, but properties or processes of a collection or system of things.
Buddhism addresses this in part with the concept of "no-self" or "deathlessness". In modern terms, if the self is just a process of the brain, it isn't a thing that can die, or return to life. One has to let go of the notion of a discrete self in order to break free from the suffering of fear of death.
Taoism addresses this notion of "not things, but processes" in the concept of the Tao (or, the Way). The first thing one should do when reading Taoist texts is to relinquish the notion that they are talking about a specific thing or goal, which is why they use phrases that indicate that trying to grasp Tao in any sort of physical terms is impossible. In a fundamental sense, Tao is the universe as a process, rather than a thing. Taoism is about coming to terms with this notion, and adjusting your lifestyle accordingly.
So, with that preface, to answer your questions:
1) Tao isn't a thing, it is the very process of existence. It is the interactions between opposites (Yin and Yang) that result in all we experience. Because of this, it is misleading to refer to it in physical terms, and since language is built on physicality, this leads to obscure and poetical ways to convey this concept.
2) One should realize that attempting to force your notions of what should and should not be on the universe is futile, and will only lead to frustration. By relinquishing these notions, and learning to view the world as an ongoing process, not a static object, one will live more harmoniously, and more contentedly.
I hope this helps.