The Inca Empire, was organized in dominions with a stratified society, in which the ruler was the Inca. It was also supported by an economy based on the collective property of the land. In fact, the Inca Empire was conceived like an ambitious and audacious civilizing project, based on a mythical thought, in which the harmony of the relationships between the human being, nature, and gods was truly essential. The economy was mainly agricultural, though it reached some animal husbandry and mining development. The primary goal of the Incan economy was substinence, with a system based on reciprocity and exchange of products.