Incense was often burned in large censers, especially during human sacrices to the god of rain, Tlaloc (gure 7). Many censers, dating back 800 years, were left surrounding the Balam Throne, a large stalagmite that resembles the ceiba tree. According to the Maya, the ceiba tree is of signicant religious importance and has been referred to as the sacred tree inside the earth. Visiting the ...