The phrase refers to a document, typically in portable document format, containing solutions to questions or exercises related to foundational doctrines within a specific religious tradition, most often Christianity. It serves as a resource for individuals or groups studying core tenets, offering guidance and verification of understanding.
Such a resource aids in comprehension and retention of essential religious concepts. Its existence facilitates self-assessment and provides a structured learning experience, potentially bridging gaps in understanding for students of theology or individuals seeking to deepen their faith. Historically, these resources have become more accessible with the growth of online learning and digital publishing, allowing for wider distribution and individualized study.