Gehrz breathes delicate new life into this ancient text, unfolding the threads of Porphyry's thoughts anew. Fundamental questions for astrology -- When does the soul move into the body? Where does the soul come from? -- are considered methodically from myriad angles and potentials. This text is an enlivening read for anyone exploring the roots of astrology from historical, philosophical, and ontological perspectives." -Jenn Zahrt, PhD