"Fifty Years in the Roman Church" - a book written by Carlos Pascal Telesphorus Shiniki, tells about his long journey from serving as a Catholic priest to leaving the Roman Church and converting to Protestantism. The autobiographical essay attracted attention with its impressive testimonies about the life and practice of the Church, which prompted Shiniki to really reevaluate his faith. This book is an important document for spiritual transformation and truth seekers seeking to better understand the essence of faith and religious teachings.