Only the oppressed can receive liberating visions in wretched places. Only those thinking emerges in the context of the struggle against injustice can see God's freedom breaking into unfree conditions and thus granting power to the powerless to fight here and now for the freedom they know to be theirs in Jesus' cross and resurrection.
Sometimes to destroy the monsters that we face, we have to come against them in the same way that they have come against us. But if I do so in the power of God, I might have come against them in the same way, but I have come against them with a very kind of different power. And in that sense, nothing is the same.