In the latest volume of Foundations of Natural Spirituality, Bahram Elahi, M.D., continues to build upon the analogy between the physiological processes of the human body and those of its intangible counterpart, the soul or "psychospiritual organism." Juxtaposing the science of medicine with that of the soul, the author presents a striking and innovative paradigm in which the anatomy, nutrition, hygiene, and therapy of the psychospiritual organism is discussed in clear and concrete terms. The result is the unraveling of spirituality as a vague and abstract realm, and the elevation of its status to an experimental, verifiable science adapted to the human beings of our time.