The reality of God and the world

This has been one of my favorite Bonhoeffer quotes for years - decades, really. True spirituality is not about escapism:

In Christ we are offered the possibility of partaking in the reality of God and in the reality of the world, but not in the one without the other. The reality of God discloses itself only by setting me entirely in the reality of the world, and when I encounter the reality of the world it is always already sustained, accepted and reconciled in the reality of God.

-- Dietrich Bonhoeffer