"Varieties of Religious Experience: A Study in Human Nature" is a classic work by the American philosopher and psychologist William James. The author explores the variety of religious experiences and their influence on human nature. William James studies the impact of religious experience on an individual's psychological, emotional, and moral well-being. The book helps the reader to better understand religiosity as a phenomenon, as well as to open new ways of researching human nature. The Diversity of Religious Experience remains an important source of knowledge for those interested in religion, philosophy, and psychology.