Throughout human history, ancient wisdom and traditional myths have placed human beings between the heavens and the underworld, describing the heavens as the light-filled realm of the gods and the source of goodness, and characterizing the underworld as a demon-filled realm of darkness and the source of evil. Modern science, however, denies the heavens and knows little of the Earth's interior - even physically - beyond the first few miles, after which it simply resorts to conjecture based on the extrapolation of existing sensory data. In other words, natural science fails to take into account that the Earth is a living, spiritual being and ignores the presence of its soul-spiritual qualities and influences. The seven authors in The Inner Life of the Earth approach this difficult and little-discussed topic from different directions. They discuss how the forces emanating from the interior of the Earth affect the weather, our atmosphere, human beings, and how human behaviour in turn affects them, showing that earthly and human evolution are a unity and should never be thought of as occurring separately. They also discuss the deep significance of Christ's incarnation, by which he united with the Earth to become the Spirit of the Earth.