and intuition. Steiner believed results of this form of spiritual research should be expressed in a way that can be understood and evaluated on the same basis as the results of natural science. Steiner hoped to form a spiritual movement that would free the individual from any external authority. For Steiner, the human capacity for rational thought would allow individuals to comprehend spiritual research on their own and bypass the danger of dependency on an authority such as himself. Steiner contrasted the anthroposophical approach with both conventional mysticism, which he considered lacking the clarity necessary for exact knowledge, and natural science, which he considered arbitrarily limited to what can be seen, heard, or felt with the outward senses. Nature of the human being In Theosophy, Steiner suggested that human beings unite a physical body of substances gathered from and returning to the inorganic world; a life body (also called the etheric body), in common with all living creatures (including plants); a bearer of sentience or consciousness (also called the astral body), in common with all animals; and the ego, which anchors the faculty of self-awareness unique to human beings. Anthroposophy describes a broad evolution of human consciousness. Early stages of human evolution possess an intuitive perception of reality, including a clairvoyant perception of spiritual realities. Humanity has progressively evolved an increasing reliance on intellectual faculties and a corresponding loss of intuitive or clairvoyant experiences, which have become atavistic. The increasing intellectualization of consciousness, initially a progressive direction of evolution, has led to an excessive reliance on abstraction and a loss of contact with both natural and spiritual realities. However, to go further requires new capacities that combine the clarity of intellectual thought with the imagination and with consciously achieved inspiration and intuitive insights. Anthroposophy speaks of the reincarnation of the human spirit: that the human being passes between stages of existence, incarnating into an earthly body, living on earth, leaving the body behind, and entering into the spiritual worlds before returning to be born again into a new life on earth. After the death of the physical body, the human spirit recapitulates the past life, perceiving its events as they were experienced by the objects of its actions. A complex transformation takes place between the review of the past life and the preparation for the next life. The individual's karmic condition eventually leads to a choice of parents, physical body,