Eschatologically is a term that refers to beliefs or studies on the end of the world, existence of heaven and hell, and final judgment. Some synonyms for eschatologically include apocalyptically, doomsday, end-time, and end-of-the-world. Other related terms include millennial, which refers to a thousand-year period of peace before the end of the world, and eschaton, which describes the final stage of history, where God's purpose will be fully realized. These terms are often used in religious contexts, but they can also be applied in more general philosophical discussions about the ultimate fate of humanity and the universe.