The stars in the sky are all arched to the north, and there is no water in the world that does not face east. What does this sentence mean?

From "Augmented Xianwen", the original meaning is that all the stars in the sky revolve around the Big Dipper, and all the water in the world flows to the East. The extension means that everything in the world has its own laws, which human beings can't change. "Augmenting the knowledge and writing" is mainly to educate people to be human and do things. Many of them are familiar, for example, "Life sometimes happens, and numerology should be forced all the time." All from this book.