" The child had a premonition of the instinctual hell into which she will enter. In alchemy, this state of instinctual hell is represented as a snake with three heads, the so-called serpens mercurii. It leads the soul into the afterworld, and is identical with the Gnostic Nous. "

― C.G. Jung , Children's Dreams: Notes from the Seminar Given in 1936-40