This room was a sacred space, a place that he had chosen to make especially his own, a place redeemed from mere "use" in which he would make a conscious attempt to be at rest and to put a part of his life in order. In short, this was the evidence that the man was able to pray.
This, then, is the extravagant landscape of the world, given, given with pizzazz, given in good measure, pressed down, shaken together, and running over.