The Art of Dreaming is said to describe the steps needed to master control and consciousness of dreams. The Toltecs of Don Juan Matus' lineage believed that there are seven barriers to awareness, which they termed the The Seven Gates of Dreaming. In The Art of Dreaming Castaneda describes extensively how a state called Total Awareness can be achieved by means of dreaming.
Four of the Gates of Dreaming are discussed in The Art of Dreaming. What follows is not so much a technique in achieving lucidity, but rather the practical application of lucid dreaming. By acting a certain way while dreaming, one can cause psychosomatic changes in one's being, including an alternate way of dying.