the Monogenes is thought of as standing upon a τετράπεζα, a platform supported by four pillars, corresponding to the Christian quaternarium of the Evangelists, or to the Tetramorph, the symbolic steed of the Church, composed of the symbols of the four evangelists: the angel, eagle, ox or calf, and lion.
Jung's definitive expository statement on the Tetramorph, identifying it as the Church's fourfold symbolic vehicle and linking it directly to the Gnostic quaternarium and the Anthropos standing on four pillars.
, Psychology and Religion: West and East, 1958thesis