Eschatology is defined as any system of doctrines concerning last or final matters, such as death, judgment, and the afterlife. It is the branch of theology concerning the end of the world.
For Christians, the study of eschatology is focused on what the Bible has to say about Jesus and His involvement in the events of the End Times. Some of these events are the Rapture of the Church, the Second Coming of Jesus, the seven years of tribulation, and the final judgment. Scholars disagree on how and when these things will happen, we must focus on being prepared regardless of the timing.
How do we prepare ourselves for the events of the End Times? We prepare first by accepting Jesus as Lord and Savior. Then we live lives that honor the Lord, and we tell others about Him so they can be prepared as well.