Read the excerpt from Pat Mora’s essay "The Leader in the Mirror." I hoped that most of the students were going to enroll in college. The confetti would be for their private celebrations, those solitary moments when they had passed a test that worried them, finished a difficult paper at 2 A.M., found a summer internship. Sometimes, even when no one else is around, it’s important to celebrate when we have struggled and succeeded—to sprinkle a little confetti on our own heads. What is the author’s purpose in using confetti as a symbol?