This study traces the origins and development of the concept of Li 理 (Pattern) in early Chinese Cosmology, locating its foundation in the root metaphor derived from the natural lines or veins along which a block of jade can be split by a skilled artisan. From this relatively concrete image, li comes to eventually represent in Daoist cosmology the more abstract quality of the natural patterns or structures within the universe along which all phenomena move and interact with one another without the interference of human beings. After examining how early Confucian works emphasize the more abstract and derivative qualities of order and structure, we see that the likely Yangist authors in the Lüshi chunqiu return to the original metaphor of veins in jade but, instead, apply this to the veins through which the qi circulates through the human body.
We then see how this metaphor is expanded beyond the human body in the classical Daoist texts to come to represent the natural guidelines both within all phenomena and those that guide their movements within the cosmos. Within phenomena these include such varied things as the structures for the generation and expression of emotions within human beings as well as the natural lines along which the butcher's chopper passes in order to cleave oxen. In Daoist inner cultivation literature it is these patterns with which sages accord so that their spontaneous actions are completely in harmony with the greater forces of the cosmos. Only after long practice of the apophatic contemplative methods that include concentrating on one breathing and emptying out the normal contents of consciousness can the sage be able to accomplish this goal of “taking no action yet leaving nothing undone.” Thus the concept of li as these natural guidelines comes to serve as an explanation for why this classical Daoist dictum is effective in the world.
Finally, the Huainanzi contains the most sophisticated and sustained usages of the concept of li as the natural patterns and guidelines in the cosmos arguing that complying with them is the key to a genuinely contented life.