just as a waterfall visibly mediates between above and below. The waterfall itself is then the incommensurable third. In an open and unresolved conflict dreams and fantasies occur which, like the waterfall, illustrate the tension and nature of the opposites
Jung establishes the waterfall as the structural image of the transcendent function—the incommensurable third term that mediates psychic opposites and thereby prepares their synthesis.
, Mysterium Coniunctionis: An Inquiry into the Separation and Synthesis of Psychic Opposites in Alchemy, 1955thesis