In actual fact, however, eschatology means the doctrine of the Christian hope, which embraces both the object hoped for and also the hope inspired by it. From first to last, and not merely in the epilogue, Christianity is eschatology, is hope, forward looking and forward moving, and therefore also revolutionizing and transforming the present. The eschatological is not one element of Christianity, but it is the medium of Christian faith as such, the key in which everything in it is set, the glow that suffuses everything here in the dawn of an expected new day. For Christian faith lives from the raising of the crucified Christ, and strains after the promises of the universal future of Christ. Eschatology is the passionate suffering and passionate longing kindled by the Messiah. Hence eschatology cannot really be only a part of Christian doctrine. Rather, the eschatological outlook is characteristic of all Christian proclamation, of every Christian existence and of the whole Church. A Theology of Hope
In other words, if you claim to be a follower of Christ and your hope for the future based on what Jesus said and did doesn’t cause you to act out that hope in the present then you seriously misunderstand Jesus’ point.