The golden trident is, of course, an allusion to the Trinity, and the fact that it is 'golden' is an alchemical sous-entendu, just as the idea of God's transformation in this strange allegory of Dorn's is intimately bound up with the alchemical mysterium.
Jung reads Dorn's golden trident as a Trinitarian symbol whose golden quality encodes alchemical transformation, linking the three-pronged implement directly to the mysterium of divine self-change.
, Alchemical Studies, 1967thesis