"To Infidelity and Back" by Henry F. Lutz is a religious autobiography written in the early 20th century. The narrative chronicles the author's spiritual journey, beginning in confusion and doubt as he grapples with various philosophies, including rationalism and Unitarianism, and ultimately finding solace and certainty in Christianity. The opening of the text introduces Lutz's formative years, emphasizing his intense inner conflict regarding faith, reason, and the teachings he encountered throughout his youth. He describes his deep desire for truth and how this quest led him through a tumultuous intellectual landscape filled with skepticism and philosophical inquiry. The author candidly shares the struggles he faced while reconciling his inherent religious inclinations with the doctrines of differing sects that often led him away from faith, ultimately setting the stage for his return to Christianity and commitment to evangelism. (This is an automatically generated summary.)