"Mgla (Nivola)" is a philosophical novel by the outstanding Spanish writer Miguel de Unamuno. In this book, the author explores the eternal questions of existence, death, religion, and self-identity. The main character, Augustin Perez, is in search of the meaning of his life and seeks to understand his place in the world. In this vague and symbolic story, the author manages to create an atmosphere of confusion and psychological tension, which is reflected in many of Unamuno's works. He draws the reader into the hero's own inner world, where mental turbulence and the struggle with himself unfold. "Mgla (Nyvola)" is a classic of world literature, which leaves a deep mark in the hearts of readers and encourages them to think about their own life and existence.