Summary: Integrating the findings of modern science with ancient wisdom, this seminal work offers a paradigm for resolving the schism between spirit and matter. Arthur Young's Theory of Process provides a model for the evolution of consciousness out of light (the quantum of action), offering hope for an age in search of value and meaning. This is a facsimile of the original 1976 Delacorte edition, with typographic corrections in the text and a new introduction by Huston Smith.