"God Is Dead" is a famous phrase attributed to the philosopher Friedrich Nietzsche. It appears in his work "The Gay Science" and signifies the decline of traditional religious beliefs in the modern world. Nietzsche used this statement to express the idea that the Enlightenment and scientific advancements had eroded the foundations of faith, leading to a crisis in meaning for many individuals. The phrase is often interpreted as a commentary on the consequences of losing a central moral authority. Nietzsche believed that without God, people would need to create their own values and meaning in life, which could lead to existential challenges and a reevaluation of morality.