He who has not experienced the peace of heaven cannot perceive what the peace is in which the angels are. As man is unable, as long as he is in the body, to receive the peace of heaven, so he can have no perception of it, because his perception is in what is natural. To perceive it he must be able, as to thought, to be raised up and withdrawn from the body and kept in the spirit, and at the same time be with angels. In this way has the peace of heaven been perceived by me, and therefore I am able to describe it. Yet because human words are inadequate, I cannot describe in words that peace in itself but only as it is in comparison with that rest of mind experienced by those who are content in God.