The book is aimed at all readers not just those who are interested in the esoteric. It introduces accessibly and surprisingly clearly the causes of the toxic relationships that arise between people and ghosts. It contains a large dose of psychology of the soul, testimony to the author's spiritual maturity. Ghosts are the souls of people who, after the death of their physical body, have not resolved to pass through to the other side of death's curtain. The reason for that is that, for various reasons, they overlooked their own deaths, didn't have the courage to go through to the other side or were detained or even pulled away from their road by those mourning the souls of their near ones. When they remain in the world of the living they possess people which can be the cause of very unpleasant and sometimes even tragic experiences. Starting with the mildest -- the presence of ghosts in a person causes severe mood swings ranging from powerful explosions of negative energy to deep depressions. They bring out severe states of anxiety, they tempt those possessed to commit suicide, they have a powerful influence on the psyche and are the cause of psychiatric illnesses. In addition, the diseases of the dead person very often transfer through the ghost to the person possessed. Wanda Pratnicka is an exorcist and psychotherapist of world renown. Over the past thirty years she has helped many thousands of patients throughout the world.