"Zarathustra" is a philosophical novel written by Friedrich Nietzsche. It tells the story of a prophet named Zarathustra who descends from a mountain after spending years in solitude. He shares his insights about life, morality, and the concept of the Übermensch, or "Overman," which represents an ideal individual who transcends conventional values. Throughout the book, Zarathustra challenges traditional beliefs and encourages people to embrace their own potential. The work is known for its poetic style and profound ideas, making it a significant piece in the realm of existential philosophy. Nietzsche uses Zarathustra to explore themes of self-overcoming and the importance of creating one's own values.