Assemblies of rectangular stone pillars, or stelae, fill the plazas and courts of ancient Maya cities throughout the lowlands of southern Mexico, Guatemala, Belize, and western Honduras. Mute testimony to state rituals that linked the king's power to rule with the rhythms and renewal of time, the stelae document the ritual acts of rulers who sacrificed, danced, and experienced visionary ecstasy in connection with celebrations marking the end of major calendrical cycles. The kings' portraits are carved in relief on the main surfaces of the stones, deifying them as incarnations of the...