This is the first complete modern edition of Henry More's long philosophical poem, A Platonick Song of the Soul (1647). This early work of the Cambridge Platonist, written in Spenserian stanzas, is a sustained literary presentation of the Neoplatonic doctrine of the immateriality and immortality of the soul. Despite the occasional strenuousness of its poetic style, the Platonick Song offers a splendid baroque evocation of the extraordinary powers of the soul both in its individual microcosmic form and in its universal macrocosmic manifestation.