Marty: This is Jung's stone at Bollinger. Notice the Trickster/enabler in the center holds a light to open to the four quadrants. The four quarters are the four "psychological types" - the are the four everything; the four corners of the universe but in our lives we expereince them in personcality. The light brings us from one to the other as we go through life and death.
But this, the Mandala of Vajrabhairava, goes to the same place; trickster in center, four quarters.