How do you know the way of metaphysics played by the seven sages from Laozi and Zhuangzi to Zhulin? How do you understand metaphysics?

I didn't know much about the study of Lao zi and Zhuang zi before, but by the time of the seven sages of bamboo forest, it was not just the philosophy of Lao zi and Zhuang zi, but the speculative philosophy of thinking about the life of the universe. Wei and Jin Dynasties were a period of social unrest, and literati could not protect themselves. They all "let nature take its course" and tried to explore the way out of personal freedom and escape from the world through metaphysics, among which Ruan Ji was a typical representative.