What does Stanley learn that he will be doing every day holes?

In "Holes" by Louis Sachar, Stanley Yelnats learns that he will be digging holes every day at Camp Green Lake as part of his punishment. Each hole is five feet deep and five feet wide, and the warden claims it builds character. However, Stanley soon discovers that the digging is part of a larger mystery involving hidden treasure and the history of the land. This daily routine becomes a transformative experience for him, leading to personal growth and friendship.