The Meaning of Our Name Sastun (pronounced SAHS-toon) is a Maya word composed of the words sas, meaning "light", and tun, meaning "stone". A sastun is a special divining stone or "light stone" used by the Central American Maya H'men or "doctor priestess" (literally meaning "one who knows"). The H'men uses her sastun as a vital and important tool to help see and discern ....