Beliefs
The Sapa Inca was conceptualized as divine and was effectively head of the state religion. Only the Willaq-Umu (or Chief Priest) was second to the emperor. Local religious traditions were allowed to continue, and in some cases such as the Oracle at Pachacamac on the Peruvian coast, were officially venerated. Following Pachacuti, the Sapa Inca claimed descent from Inti, which placed a high value on imperial blood; by the end of the empire, it was common to wed brother and sister. He was “son of the sun,” and his people the intip churin, or “children of the sun,” and both his right to rule and mission to conquer derived from his holy ancestor. The Sapa Inca also presided over ideologically important festivals, notably during the Inti Raymi, or “warriors’ cultivation,” attended by soldiers, mummified rulers, nobles, clerics, and the general population of Cusco beginning on the auspicious June solstice and culminating nine days later with the ritual breaking of the earth using a foot plow by the Inca himself. Moreover, Cusco itself was considered cosmologically central, loaded as it was with huacas and radiating ceque lines, and geographic center of the Four Quarters; Inca Garcilaso de la Vega himself called it “the navel of the universe.
Organization of the empire
The Inca Empire was a federalist system which consisted of a central government with the Inca at its head and four quarters, or suyu:Chinchay Suyu (NW), Anti Suyu (NE), Kunti Suyu (SW), and Qulla Suyu (SE). The four corners of these quarters met at the center, Cusco. These suyu were likely created around 1460 during the reign of Pachacuti before the empire assumed it largest territorial extent. It is probably the case that at the time the suyu were established they were roughly of equal size and only later changing their proportions as the empire expanded north and south along the Andes.
