تعریف و معنای "the end of a melody is not its goal"

What is the origin of the proverb "the end of a melody is not its goal" and when to use it?

The phrase "the end of a melody is not its goal" originates from Friedrich Nietzsche's work, 'The Wanderer and His Shadow.' It suggests that, much like a melody, the value of an endeavor lies in the experience and enjoyment of each step along the way, rather than just rushing toward the end. This saying highlights the importance of appreciating and enjoying the steps taken toward a goal, rather than only focusing on the destination.