Natural Copal is a type of resin produced from plant sap often from members of the genus Copaifera. The term is particularly identified with the aromatic tree resins used by the cultures of pre-Columbian Mesoamerica as ceremonially burned incense and other purposes. More generally, the term copal describes resinous substances hardening between more "gummy" resins and amber. The word copal is derived from the Nahuatl language word copalli, meaning "incense". Copal is used in rituals of purification, consecration, making contact with the other planes, and exorcism rites.