氣化宇宙思想成熟於兩漢，其理源推本於先秦時期的「天道」、「精氣」、「陰陽五行」諸論，經流行於秦漢之際的黃老學融攝而來，集成於《呂氏春秋》、《春秋繁露》、《淮南子》、《黃帝內經》等大部頭之作品。其時的學術主軸，聚焦於「治國」和「治身」兩大課題。思想家圍繞在「宇宙論中心」的思想氛圍，探索天道實然、人道應然、天人關係等課題，乃有意在藉當時氣化宇宙論的學術成果，證成其「治國」和「治身」之主張。本文擬就黃老學的學術性格談起，深入氣化宇宙的釋物理序，組構其時陰陽五行的天人圖式；即此天人圖式之內蘊，探論其時陰陽五行世界觀的天人關懷。

Derived from the theories of “Dao”, “Qi” as well as “Yin-Yang and Wu-Xing” in the Pre-Qin Dynasty, combined with “Huang-Lao’a School” flourishing in the middle of Qin and Han Dynasty, Qi’s Cosmology reached maturity in the Han Dynasty and was compiled in contemporary great works such as “Lushi Chunqin”, “Chuqin Fenluo”,“Huainanzi”, and “Huangdi Neijing”. The main thinking of the time was basically focusing on two themes, “how to rule a country” and “how to nurse oneself” (physically and mentally). Those doctrines were intentionally verified by the scholars through their scholarly achievements with the topics related to ”Nature’s Law”, “Mortal Moral” or ”The relation between Tien and Humanity” in terms of the idea around “Qi’s Cosmology”.
In this article, we will start with discussing what “Huang-Lao’a School”
is about and then groping into how Qi’s Cosmology explains the world.
After that, we will try to frame the model of Yin-Yang and Wu-Xing in
those days, which model, therefore, is as a way to understand that
concerning with the relation between Tien and Humanity in terms of the
universal concept of Yin-Yang and Wu-Xing.