Naguib Mahfouz's 'Night's Heart' (Qalb al-Layl) is a profound and philosophical novel that delves deep into the existential dilemmas of its protagonist, Jaafar. Set against the backdrop of changing Egyptian society, the story follows Jaafar's spiritual and intellectual odyssey as he grapples with questions of faith, reason, love, and destiny. Mahfouz masterfully weaves a narrative rich in symbolism and introspection, exploring themes of Sufism, social transformation, and the search for meaning in a complex world. This work stands as a testament to Mahfouz's unparalleled ability to fuse realism with timeless philosophical inquiry, offering readers a captivating glimpse into the human soul.