At the four cardinal points we see human figures: at the top, an old man in the attitude of contemplation; at the bottom, Loki or Hephaestus with red, flaming hair… Together they indicate four aspects of the personality, or four archetypal figures belonging, as it were, to the periphery of the self.
Jung interprets mandala figures placed at the four cardinal points as projections of four archetypal personality aspects located on the periphery of the Self.
, The Red Book: Liber Novus, 2009thesis