The Sierra Norte, known as La Sierra Juarez, is a mountain range that runs parallel to the Gulf of Mexico, from the State of Nuevo Leon and as it narrows forms the waist of the nation in Oaxaca, almost joins with the Sierra Sur, mountain chain which runs down from Alaska parallel to the Pacific Ocean and in Oaxaca is called "Mixtec knot".

"Oaxaca is the spiritual reserve of Mexico", because it is the depositary of the ancestral spirit force that comes from the very beginning of times and has been impregnated, not only in its monumental buildings, but primarily in the heart of the daily living of its people.

Visiting Monte Alban is opening a door to our immense and wonderful ancient cultural heritage. It is to go to the depths of our being.

At the top of the Oaxaca mountains, in one of the most important festivals of our culture, in the early evening, with a clean and clear sky, with a beautiful Moon big and generous, in the center of a pantheon, I had the opportunity to speak, perhaps the most moving talk about our old grandparents, that I have been able to pronounce in my life.