This study focuses on the Arbaeen March as a modern application of Joseph Campbell’s Hero’s Journey. It studies the pilgrimage as an organized story of faith, resistance, and spiritual transformation. The study fills the gap in academic attention to Arbaeen as a literary and mythic genre. Using Campbell’s stages of departure, initiation, and return, the study examines pilgrims’ experiences using qualitative methods such as observations, interviews, and analysis of speeches and rituals during the march to Karbala. Thematic analysis ties these real-life experiences to the structure of the Hero’s Journey. The research uses Campbell’s theory, together with cultural and narrative theory, to explain how pilgrims exhibit ideals like as sacrifice, moral growth, and solidarity. The study concludes that the Arbaeen March is not only a spiritual event but also a powerful narrative journey. It mirrors classic heroic patterns and functions as a living myth that deepens cultural identity, collective memory, and moral purpose.