The interpreter’s role is to help the ego-shade adjust to his underworld milieu. The interpreter is a guiding Virgil, or a Teiresias, or a Charon; he is not a Hercules or an Orpheus.
Hillman explicitly defines the Herculean Fantasy by negation: the dream interpreter must not enact the Hercules-posture of forceful retrieval from the underworld but must instead serve soul’s own chthonic movement.
, The Dream and the Underworld, 1979thesis