The alchemical idea of gold is difficult to recapture today except through fantastical language… 'The gold of Alchemy is not true but fantastical gold.' Once it was imagined that the corporeal substance of the gods was gold.
Hillman argues that alchemical gold is irreducibly symbolic and divine rather than material, requiring 'fantastical language' to recover its original meaning as the incorruptible body of deity.
, Alchemical Psychology, 2010thesis