Bylinas are traditional Russian epic poems that recount the heroic deeds of legendary figures, often set in a historical or mythical context. These narratives typically feature brave warriors, known as bogatyrs, who defend their homeland against invaders and supernatural forces. Bylinas are an important part of Russian folklore and cultural heritage, often passed down orally through generations. The structure of bylinas usually includes a rhythmic and repetitive style, making them easier to memorize and recite. They often highlight themes of bravery, loyalty, and the struggle between good and evil. Bylinas have been collected and studied by scholars, contributing to the understanding of Slavic culture and history.