In his understandable attempt to preserve the multivalent indeterminacy of archetypes that transcend every particular embodiment, Jung called upon a Kantian framework of phenomenon and noumenon that entailed the unknowability of the archetypes in themselves
Tarnas identifies Jung’s recourse to Kantian unknowability as a conflation of archetypal multivalence with epistemological inaccessibility, arguing that multivalence does not entail that archetypes cannot be directly known.
, Cosmos and Psyche: Intimations of a New World View, 2006thesis