Divination
Divination was the prerequisite to all action. Nothing of importance was undertaken without recourse to divination. It was used to diagnose illness, to predict the outcome of battles, and to ferret out crimes, thus giving it a judiciary function. Divination was also used to determine what sacrifice should be made to what god. Life was believed to be controlled by the all-pervading unseen powers, and to determine these portents the priests had recourse to the supernatural. Oracles were considered to be the most important and direct means of access to the wayward gods. One oracle of a huaca close to the Huaca–Chaca Bridge, across the Apurímac River near Cuzco, was described by a chronicler as a wooden beam as thick as a fat man, with a girdle of gold about it with two large golden breasts like a woman. These and other idols were bloodspattered from sacrifices—animal and human. “Through this large idol,” a chronicler wrote, “the demon of the river used to speak to them.” Another well-known oracle was housed in a temple in the large adobe complex of Pachacamac near Lima.
Divination also was accomplished by watching the meandering of spiders and the arrangement that coca leaves took in a shallow dish. Another method of divination was to drink ayahuasca, a psychedelic brewed from plants that had profound effects on the central nervous system. This was believed to enable one to communicate with the supernatural powers.
Fire also was believed to provide spiritual contact. The flames were blown to red heat through metal tubes, after which a practitioner (yacarca) who had narcotized himself by chewing coca leaves summoned the spirits with fiery conjuration to speak—“which they did,” wrote a chronicler, by “ventriloquism.” Divination by studying the lungs of a sacrificed white llama was considered to be efficacious. The lungs were inflated by blowing into the dissected trachea (there is an Inca ceramic showing this), and the future was foretold by priests who minutely observed the conformance of the veins. On the reading of this augury, political or military action was taken.
Confession was part of the priestly ritual of divination. Should rain not fall or a water conduit break without cause, it was believed that such an occurrence could arise from someone’s failure to observe the strictly observed ceremonies. This was called hocha, a ritual error. The ayllu, a basic social unit identified with communally held land, was wounded by individual misdeeds. Crimes had to be confessed and expiated by penitence so as not to call down the divine wrath.