Life and death was a philosophical question that involved the meaning and ultimate proposition of human existence. Different cultures and religions had different views and explanations of life and death. In some religious and philosophical traditions, life and death were seen as a cycle. Everyone's life was unique, and after death, they would return to this cycle. In these traditions, death was seen as a transition, the threshold to the next stage of life. In other cultures, life and death are seen as an independent process. They believed that human life could be considered infinite, and that everyone could live forever. In this tradition, death was seen as a natural phenomenon rather than the end of life. Some cultures viewed life and death as a game. In this tradition, people would try to extend their lives in various ways or try to make some meaningful contributions before death in order to get a better evaluation and status after death. Life and death was a very complicated and profound problem, which involved the meaning and ultimate proposition of human existence. Different cultures and religions had different views and explanations of life and death.