The Chinese character system is a huge world of words. It is a self-contained system, intertwined, orderly and leisurely. Compared with the real world, the world established by words is more profound, vast and permanent in terms of space and time.In such a vast world, one word has always been at the core - “中”.Describe the origin of the word “中” and the Chinese people’s philosophy of life and life pursuits it embodies.