Not, of course, that Ahura Mazda could be represented as other people chose to portray their gods, in the form of some vulgar idol or painted image; yet vacancy, mystery-hedged and awful, might serve instead. So it was that an exquisitely decorated war chariot, guided by a charioteer following it on foot, was to accompany the army into Greece, wholly empty—“for the mortal does not exist who may take his place upon that chariot’s throne.”