This study delves into the Pre-Qin Confucian understanding of "ren." (human beings), focusing on the tripartite dimensions of "shen." (body), "qing." (sentiment), and "xin." (mind) as viewed through the lens of "li." (ritual). By analyzing the works of Confucius, Mencius, Xunzi, and other significant early texts, we unravel how these early Confucian philosophers reconceptualized human beings within the framework of "li." (ritual). In doing so, they presented a novel perspective on the human experience that emphasized the interconnectedness of these three dimensions, transforming the way people thought about themselves and their place in the world. This research illuminates the unique contributions of Pre-Qin Confucianism to the understanding of human beings and provides valuable insights into the philosophical breakthroughs of this period in Chinese thought. Furthermore, this understanding of human beings persisted throughout the subsequent imperial history of China.