The Pelican sophisticates the familiar alchemical image of the Ouroboros, the snake that bites its own tail. The Pelican, too, is a tail-eater: the lower end is consumed by the upper end, the head, but the process does not stop there with mental reflection.
Hillman argues that the Pelican advances beyond the Ouroboros by routing inspired content back downward into the vessel, embodying sacrificial iteratio and making the continuance of the opus the supreme imperative.
, Alchemical Psychology, 2010thesis