noun Theology. any system of doctrines concerning last, or final, matters, as death, the Judgment, the afterlife, etc.

What exactly is eschatology?

eschatology, the doctrine of the last things. It was originally a Western term, referring to Jewish, Christian, and Muslim beliefs about the end of history, the resurrection of the dead, the Last Judgment, the messianic era, and the problem of theodicy (the vindication of God's justice).

What does Eschatologically mean?

1 : a branch of theology concerned with the final events in the history of the world or of humankind.