The author of this book reveals the secret teachings of Nagualism as they have been transmitted to him by don Juan and by the death opponent, Carlos Castaneda's masters. Subject of the book is the organic and systematic reconsideration of the topics discussed by Carlos Castaneda, such as the perception's widening, the art of stalking, the practice of dreaming and the control of the intent. The author does not confine himself to re-present the teachings already developed in Castaneda's works but, thanks to the teaching he has been given, he can bridge the gaps left by the well-known anthropologist. In Castaneda's books, in fact, many topics remain pending; for example, only the first gates of dreaming and the first abstract cores are described. So, for the first time, the three rules of the Nagual, the secret of the three recapitulations, all eight gates of dreaming and all twenty-one abstract cores are revealed.