Rudolf Steiner: "It is, so to speak, only with a part of his being that man belongs to earthly existence; with the other part he belongs to a world that is not the material world perceptible to the senses. It is in that other world that he prepares his spirit-seed. Let it never be imagined that man’s achievements in culture and civilization on the Earth, however complex and splendid they may be, are at all comparable with the greatness of what is achieved by him together with the beings of the higher hierarchies in order to build this wonder-structure of the human physical organism."