The Quechua people had a complex belief system that revolved around animism, which is the belief that everything in the world, including inanimate objects and natural phenomena, has a spirit or essence. They believed that the natural world was alive and that everything was interconnected. They also believed in a supreme creator god, Viracocha, who was responsible for the creation of the universe and all living things. Additionally, they believed in a pantheon of lesser gods who controlled various aspects of life such as agriculture, fertility, and weather. The Quechua also had a strong connection to their ancestors and believed in honoring them through rituals and offerings.