This is the homily-workshop for the Twenty-seventh Sunday in Ordinary Time - Year C (Gospel of Luke 17:5-10), held on October 5, 2025, in the Church of Gesù Nuovo in Naples. What if today's homily were not just a sermon, but also a guided spiritual exercise? "We are unprofitable servants." Why should this phrase, which sounds so harsh, be said with a smile? What is the secret hidden in this word "unprofitable" that, instead of humiliating us, can give us freedom? Who really is the "unprofitable servant," and why can his smile change our way of life?