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.
Carlos Castaneda...that was the way human beings are; they love to be told what to do, but they love even more to fight and not do what they are told, and thus they get entangled in hating the one who told them in the first place.
Carlos CastanedaMy benefactor said that when a man embarks on the paths of sorcery he becomes aware, in a gradual manner, that ordinary life has been forever left behind; that knowledge is indeed a frightening affair; that the means of the ordinary world are no longer a buffer for him; and that he must adopt a new way of life if he is going to survive. The first thing he ought to do, at that point, is to want to become a warrior.
Carlos CastanedaThe world doesn't yield to us directly, the description of the world stands in between. So, properly speaking, we are always one step removed and our experiences of the world is always a recollection of the experience. We are perennially recollecting the instant that has just happened, just passed. Re recollect, recollect, recollect.
Carlos CastanedaA hunter that is worth his salt does not catch game because he sets his traps, or because he knows the hunting routines of his prey, but because he himself has no routines. This is his advantage. He is not at all like the animals he is after, fixed by heavy routines and predictable quirks; he is free, fluid, unpredictable
Carlos Castaneda