In recent years, a new awareness of the existence of evil has emerged. In this book, Heinrich Christian Rust paints a picture of this real struggle between good and evil. By taking the statements of the Bible regarding the invisible reality seriously, he achieves a sober assessment. Between fundamentalist black-and-white thinking, rationalist denial, and charismatic experiential theology, Rust arrives at a biblically grounded position. The book does not remain theoretical: at the end, the author also provides practical advice for dealing with demonic burdens.