A rabbi, a real cabalist, once said that in order to establish the reign of peace it is not necessary to destroy everything nor to begin a completely new world. It is sufficient to displace this cup or this brush or this stone just a little, and thereby everything. But this small displacement is so difficult to achieve and its measure is so difficult to find that, with regard to the world, humans are incapable of it and it is necessary that the Messiah come.

Bloch, repeating a parable related to him by Benjamin, who, in turn, heard it from Scholem (cited). 

Benjamin's version of the parable runs:

The Hassidim tell a story about the world to come that says everything there will be just as it is here. Just as our room is now, so it will be in the world to come; where our baby sleeps now, there too will it sleep in the other world. And the clothes we wear in this world, those too we will wear there. Everything will be as it is now, just a little different.