Augustine conceived and began writing The City of God during the first Saturn-Pluto conjunction of the fifth century, in 410–12… awareness of which deeply shaped Augustine’s historical understanding and the vision set forth in The City of God.
Tarnas argues that Augustine’s City of God was both conceived and structurally shaped by the Saturn-Pluto archetypal complex, linking its moral dualism, eschatological severity, and historical catastrophism to a precise planetary configuration.
, Cosmos and Psyche: Intimations of a New World View, 2006thesis