This book will teach you that the degree of your health and the well-being of humanity strongly depends on the level of faith. The author says that people, who believe they will never get sick, rarely fall ill and ill people with solid confidence recover sooner. The book tells about the power of belief on real-life examples, like creating the church itself. Also, it gives practical advice on prayer for the sick, prayer for healing, or prayer at home. Being written by one of the most influential leaders of religious thought and a prominent Baptist preacher, the presented here book helped revolutionize Christian thought and the end of the 19th and at the beginning of the 20th century.