Why should we wish to know about and seek to understand the dark, hidden realms of the Earth's interior? During the early twentieth century, Rudolf Steiner spoke of the esoteric nature of what lies beneath our feet, both physically and spiritually. He saw within the Earth the layers of "Hell" through which the Christ traveled following the Crucifixion and before the Resurrection, and how he thus united himself with the Earth and inserted himself more fully into human destiny. Steiner also spoke of how the different layers of the Earth's interior affect and interact with human beings living on Earth.