There's no way to put a limit on what one may accomplish individually if the intent is an impeccable intent. Don Juan's teachings are not spiritual. I repeat this because the question has come to the surface over and over. The idea of spirituality doesn't fit with the iron discipline of a warrior. The most important thing for a shaman like don Juan is the idea of pragmatism.

Men have to be hooked. Women don't need that. Women go freely into anything. That's their power and at the same time their drawback. Men have to be led and women have to be contained

In the Art of Dreaming Don Juan tells Carlos, "... most of our energy goes into upholding our importance... if we were capable of losing some of that importance, two extraordinary things would happen to us. One, we would free our energy from trying to maintain the illusory idea of our grandeur; and two we would provide ourselves with enough energy to ... catch a glimpse of the actual grandeur of the universe."

Your thoughts and your actions are fixed forever in their terms. That is slavery. I, on the other hand, brought you freedom. Freedom is expensive, but the price is not impossible. So, fear your captors, your masters. Don't waste your time and your power fearing me.

A warrior considers himself already dead, so there is nothing to lose. The worst has already happened to him, therefore he's clear and calm; judging him by his acts or by his words, one would never suspect that he has witnessed everything.

Seek and see all the marvels around you. You will get tired of looking at yourself alone, and that fatigue will make you deaf and blind to everything else. - Don Juan

Before you embark on it you ask the question: Does this path have a heart? If the answer is no, you will know it, and then you must choose another path.