Making peace with ourselves means accessing inner peace that can be cultivated and extended to others. Authentic inner peace does not mean living in isolation, but discovering our own true nature and living in harmony with other people and the environment.
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.