"Spiridion" is a novel-poem by the famous French writer of the 19th century, George Sand. In this book, she explores the theme of faith, doubt, and moral principles. The main character, Spyridion, is in search of spirituality and truth, experiencing vicissitudes of his inner world. This work was composed in the form of letters that the hero writes to his friend, revealing his feelings and thoughts. "Spiridion" is not only an interesting story, but also a philosophical meditation on life and faith.