the demon instigates both the desire and the anxiety. They do not convert into each other, owing to Freudian censors and the mechanical hydrostatics of libido-damming
Hillman argues against the Freud/Jones hydraulic model of desire-converting-to-anxiety, proposing instead that a mythological third term — the demonic — simultaneously instigates both poles of the dyad.
, Pan and the Nightmare, 1972thesis