Death is a fundamental issue in philosophical inquiry across times and cultures. Confucian scholars, including Confucius and Zengzi, held relatively clear understandings and distinct attitudes toward death. Since the time of Confucius, Confucian thinkers have placed significant emphasis on interpreting the concept of death. Zengzi's view of life and death is manifested in three dimensions. First, Zengzi believed that the physical body is bestowed by one’s parents and must not be harmed; upon death, it should be returned intact, and only after death can one truly rest in peace.Second, ritual righteousness is more important than life itself. For pre-Qin Confucian scholars like Zengzi, upholding righteousness even at the cost of life was considered honorable. Finally, death is not simply an end but a harmonious integration with the cosmos and nature, and this new state of existence is the unity of heaven and man. Filial piety, as a fundamental moral emotion and behavioral norm, is not limited by time and can be passed down from generation to generation, lasting forever. Just as "benevolence" is the core of Confucius' ritual studies, "filial piety" is not only the core of Zengzi's thought, but also the core of Zengzi's ritual studies.