“Shamanism resembles an academic discipline (such as anthropology or molecular biology); with its practitioners, fundamental researchers, specialists, and schools of thought it is a way of apprehending the world that evolves constantly. One thing is certain: Both indigenous and mestizo shamans consider people like the Shipibo-Conibo, the Tukano, the Kamsá, and the Huitoto as the equivalents to universities such as Oxford, Cambridge, Harvard, and the Sorbonne; they are the highest reference in matters of knowledge. In this sense, ayahuasca-based shamanism is an essentially indigenous phenomenon. It belongs to the indigenous people of Western Amizonia, who hold the keys to a way of knowing that they have practiced without interruption for at least five thousand years. In comparison, the universities of the Western world are less than nine hundred years old.”