Is a person in a dream able to perceive some areas of the real world? Is it possible to cognize the outside world and influence it in a dream? The Indian shamans, about whom Castaneda wrote, argued that with the help of a special discipline we can learn this. The Toltec practice of dreaming is the key to ancient magic and the way to transform a person into a more powerful and free being . This book is about how to learn to visit other worlds in a dream state, influence Reality, and change your own energy body. The author reveals the essence of such phenomena as dream attention and the dream body, offers a technological description of the practice of achieving them and answers many questions that arise as we explore the dream worlds.