What is the theme in The Long Loneliness: The Autobiography of Dorothy Day by Dorothy Day?

Another theme in this book is Roman Catholicism. The title of Day's autobiography is The Long Loneliness: The Autobiography of the Legendary Catholic Social Activist. Thus, Catholicism undoubtedly played a foundational role in Day's worldview and day-to-day activities. Early in life, her family were Protestants but were not deeply religious. Day was always drawn to faith but had little understanding of God and theological doctrine. When she became more socially active and interested in radicalism, she rejected Christianity as offering only a palliative to social ills and not a revolutionary reduction of elimination of them.