What is asked of a messenger is to be as free as a silken thread, that he may tune his lute as high as he chooses; and yet to be as strong as the gut string, so that he may endure the wear and tear of life in the world. To be so tender as to respond to every call for sympathy, and to be so firm as to bear all things. To be in the world and yet not of the world. To live and not to live, for the Lord God alone lives.