Most indigenous cultures still think with their whole brain. They still view reality from both a left and a right brain perspective. Whereas most Westernized people, people that exist within modern society, due to walking on flat ground and due to having square corners everywhere, and this completely unnatural environment that they live in, and through the constant sensory bombardment that the left brain gets, people are not even aware that they are only using half their brain. They're not even aware that a right brain perspective of reality even exists.