What is the system?

How to understand the physical space, matter, structure, class, system, these are indeed not easy to talk about, it is easy to confuse, with materialism is objective existence, I don't know if you can understand. Because these are the conceptual divisions defined by man, objective existence = space, is eternal, is everything, matter is also space, more accurately, small space, or so to speak of a lot of matter (small space) constitutes a larger object (space), structure = ordering combination of space = sort combination of matter, class = space with similar structure, and what is the system? Systems are also a combination of spaces, i.e. isomorphic spaces (classes) formed. Space (material → structure→ → systems)

You don't understand what my starting point is for writing this? The worldview, the cosmology, I'm just doing this view, that is, personal understanding and understanding, in the Dharma, that is, a practice in this world. As I said in the article "Perfect World", although people's subjective feelings of the division of various objective existences are easy to understand and communicate, but also easy to mislead, the form of expression is colorful and varied, but in essence it is unified, leaving aside so many concepts, now there is no need for those classifications and concepts, talk about my own understanding, simplify a lot of things into complexity, simplify complexity.

For example: space is relatively independent and closed, but there is no absolute independent closure, to the macro level where is the largest level, the edge of the universe? Where is the smallest level in the microscopic sense, the basis particles that make up matter? So if the understanding is not correct, then the research will never be fruitful.

If you have to say margin, then the margin exists in the moment, and my encounter with you and you is innumerable moments.