The concept of "来世" (Afterlife) refers to the belief in existence beyond physical death. Many cultures and religions, such as Buddhism and Christianity, propose that individuals continue to exist in some form after their earthly life ends. This existence can vary widely, ranging from reincarnation to eternal life in a spiritual realm. In various traditions, the afterlife is often seen as a continuation of the soul's journey, where actions in the current life influence the next phase. The idea serves to provide meaning to life and encourages moral behavior, as individuals may be held accountable for their actions in the afterlife.