A soldier commands the chariot pulled by two Sphinxes, one black and the other white, representing the passive and aggressive.  Between this is the symbol for the Divine Spirit carrying the shield which is the Ego.  The charioteer has no reigns.  This means that he must control the sphinxes through willpower and intent.  The wheels of the chariot symbolize changing cycles.  The charioteer represents the physical body who must control his conscious and subconscious which is shown by the Moons on his shoulders..  The amulet on his chest is the symbol for Earth indicating the physicality of his nature.  The belt he wears is the belt of the zodiac.  He carries the scepter of authority.  He wears the solar crown indicating his mental aspirations.  The drapery above and behind him represent the universe is ever present.