LEGEND OF THE AYAR BROTHERS.

One of the unique and significant myths about the beginning of the Inca Empire is the fantastic legend about the Ayar brothers, created by Viracocha to rule the world.
The brothers emerged from a cave named Pacari-Tambo, known as "House of Production, House of the Rising Sun, House of Hiding, or House of Daybreaks." The sacred cave was located in the Tambo-Toco Mountain which had 3 windows, each of them belonging to their respective pacha or realm: Hanan (sky), Uku (underworld), Kay (world of the living).
After a major flood destroyed the earth, from one of the windows, Maras Toco, came an spontaneous generation without ancestral fathers and called themselves "the group of the Maras Sutic,"
from another window, Capac Toco, came four brothers with their four sisters. The brothers were  married with their sisters and they were named: Ayar Manco with Mama Ocllo, Ayar Cachi and Mama Cora, Ayar Uchu and Mama Rahua, and Ayar Auca and Mama Huaco.
The legendary brothers with their sisters-wives left the cave and began a very slow journey across the Andean Mountains in search of a special and magical place to settle.
From the four brothers, Ayar Cachi was the strongest of all. He had a slingshot that threw stones that reached the sky and made sky rain creating thunders, or knocked down a mountain, or form canyons and valleys.
Fearful, the brothers convinced him to return to Pacari-tambo, the cave from where all of them came. They told him they needed to return because they left the sacred insignias (Napa) that nominated them lords, seeds, and the sacred golden cups (Topa-Cusi) assigned to each of them to be used in religious and ritual ceremonies. As soon as Ayar Cachi went into the cave they sealed it with rocks with cosmic powers, and he was left hastily trapped for eternity with no possibilities of getting out of it. He screamed so loudly that the earth trembled, breaking mountains in two and making the sky shiver.
Then remaining brothers continued their difficult and slow journey through the Andean Mountains, and in each place where they sojourned they planted seeds and tried to make them grow applying new methods of agriculture techniques in order to sustain the perfect production of food. As soon as they were able to harvest from the soil they tested the product and ranked it. If the soil was not good enough to sustain a perfect production they moved and continue in their mission to find the perfect place.
Then, after a long journey, they arrived to a place named Huana-Cancha, nearby Cuzco, then, they did the same and, after staying for a while, they harvested and tested the soil, ranked, then continue their journey. They reached Tambo-Quito, stayed there a couple of years, and then move again reaching the foot of a mountain named Quirir-Manta. They assembled together and decided that Ayar Uchu had to stay there in the form of a cosmic energy and being transformed into a major shrine or huaca and then named the hill Huana-Caure. Then they found an idol made of stone who had the same name as the hill. The brothers with his sisters/wives entered to the place where Ayar Uchu resided in a form of cosmic energy with a lot of fear because this idol held negative energy able to block their way. Ayar Uchu challenged the idol and after winning the battle he was turn then into a stone. While he was still into an energy form, he was able to tell their brothers to continue their path and never forget to celebrate the feast of Huara-Chico, a festivity in honor to adulthood.
Ayar Auca, in search of the right settlement to live with his brother, he developed wings, like a condor, and flew over a place known as "La Pampa del Sol"( the Sun settlement), he landed on this place and turned himself into a stone, and transferring his own cosmic energy to that place named Cuzco, meaning "the center of the cosmic energy.  The only remaining brother, Ayar Manco, finally reached the place and arrived to Cuzco, and sunk the golden stick that was delivered by his father and god, Inti (the Sun), founding the Inca Empire, Tahuantinsuyo. It was him who became the forefather of the Incas dynasty having changed his name to Manco Capac.
The interpretation of this legend is that War for the strongest of the Forces is always a constant in all humankind regardless the positiveness or negativeness of it. In the case of the Incas, the One who remained intact in his heart after being tested and polished by both dualistic forces, received the huge responsibility of leading the foundation of their Empire.