Note 215 — BOOK II
Arthur John Brock translation
According to the Pneumatist school, certain of whose ideas were accepted by Erasistratus, the air, breath, pneuma, or spirit was brought by inspiration into the left side of the heart, where it was converted into natural, vital, and psychic pneuma; the latter then went to the brain, whence it was distributed through the nervous system; practically this teaching involved the idea of a psyche, or conscious vital principle. “Psychic pneuma” is in Latin spiritus animalis (anima = psyche); cf. p. 126, note 4. Introduction, p. xxxiv.