Abstract

In a letter to Lorenzo di Pierfrancesco dei Medici, dating from 1477 to 1478, the Platonist philosopher Marsilio Ficino develops the classical theme of the correspondence between man and cosmos on the basis of the astrological techniques. The inner heaven, a term of the relationship between macrocosm and microcosm, takes the form of what astrologers call the birth theme: the series of astral positions at the moment of birth and related to its place. Taking up Origen’s theme of the inner heavens, he systematically applies the theory of planet-signs to deciphering underlying themes of individual personality