this theme is made most explicit in The Tempest, which contains his self-portrait as a magus and was written near the end of Shakespeare’s creative trajectory just as the Uranus-Neptune alignment became exact.
Tarnas argues that The Tempest is the astrologically determined masterwork of Shakespeare’s Uranus-Neptune phase, encoding the Hermetic-Gnostic revelation that all apparent reality dissolves into a mysterious spiritual-imaginative ground.
, Cosmos and Psyche: Intimations of a New World View, 2006thesis