THE INVISIBLE WORLD OF THE INCAS.

The Inca flourished in the Andes Mountains of Peru in South America. They had a grand empire stretching from present-day Colombia to Chile.
Worshiping the Creator was very important to them and they held a very elaborated system of beliefs.
Their divinities actually represented a number of shifting and overlapping divine powers. They were closely linked to astronomy and tied into their everyday life as well as with their government.
Their gods occupied 3 different realms: the Sky (Hanan Pacha, the Inner Earth (Uku Pacha), the Outer Earth (Kay Pacha).
Above the Earth were the heavens. They, like the earth, were divided into 4 quarters with a very complex geography separated  by a giant cross formed by the Milky Way as it passed through its zenith. The movement of astronomical bodies through the 4 quadrants determined the Inca agricultural and ceremonial calendars.
The Earth, like the heavens, were divided into 4 quarters, whose dividing energy lines (ceques) intersected in the city of Cuzco. Each divine energy line (ceque) belonged to one of the quadrants and the care of each sacred placed (huaca) containing the divine energy (ceque) on each quadrant was assigned to a particular group of people able to deal with this type of energies. In this way the ceques helped to coordinate social relations among people, as well as to organize their agricultural and religious festivals. The ceques also served as sight lines for very specific astronomical observations. The city of Cuzco was the center of their universe.
The heavens contained a Creator-Sky-Weather complex with 3 principal components: Viracocha, the Creator; Inti, the Sun god; and Illapa, the Thunder god or Weather god.
The most important female supernatural forces were Pacha Mama, the Earth; Mama Cocha, the Sea; and Mama Quilla, the Moon.
The Incas would fear lunar eclipses as they believed that during the eclipse, an animal spirit (mountain lion or serpent) would attack Mama Quilla, trying to eat her alive. Consequently, people would attempt to scare away the animal spirit by throwing weapons, gesturing and making as much noise as possible. They believed that if the animal would achieve its aim, then the world would be left in complete darkness.
A lunar eclipse was understood as the passing of the spirit of the Moon directly behind the Earth and into its shadow. This would occurre only on the night of a Full Moon. The type and length of the lunar eclipse depended on the Moon proximity to the 2 points at which its orbit intersects the ecliptic. During a total lunar eclipse, the Earth completely blocked direct sunlight from reaching the moon. The only light reflected from the lunar surface was the one refracted by Earth's atmosphere. As sun light penetrates the Earth's atmosphere, the gaseous layer filters and refracts the rays in such a way that the green to violet wavelengths on the visible spectrum are being scattered more strongly than the red, thus giving the Moon a reddish cast.
The views of the Inca about the Afterlife was very optimistic as they believed that the protective spirits of their ancestors played an active role in the world of the living. They were able to reveal themselves through the sacred places known to them as "Huacas" and they were cared for and respected by their descendants.
The Inca Empire was moved by very strong moralistic rules, and they believed the souls of the virtuous joined the Sun in heaven. Those souls had plenty to eat and drink. These souls were able to remain connected to their descendants, and their lives continued much as they had on earth. The souls of the evildoers went to the underworld (inner Earth), a cold and barren place.