What moments make you feel that the book has not been read in vain?

The school held an oral composition contest, and I was recommended to be a contestant by the literary selection teacher. Rural children who have not participated in any competitions have not seen much of the world. I am really nervous. Seeing my anxiety and timidity, the teacher specially told me that according to my reading experience, an oral composition contest was completely qualified. On the day of the game, draw lots first, then choose a topic, prepare for three minutes, and then play. The topic I drew is my favorite book, which is not only close to my life, but also my favorite theme. Yes, my competition was very successful. I won the first prize, which is the first grand prize in my life. At that moment, I really felt that books were not read for nothing.