Our youth seems to be accustomed to dullness. We read too many novels and TV series, and mistakenly believe that youth is always wonderful and crazy. The love we have fantasized about countless times never came in the end. We look forward to something spectacular or lasting forever, but most of them we have never met. Maybe, we were just too young to be there and didn't know it. One day we left there, and when we recalled it, we suddenly thought of the boy's smile in the afternoon and the girl's tears on the rainy day. It seemed that everything happened in a dream, and it was hard for us to imagine that we had really been there. In Lin Xiaoran's youthful years, too many people passed by in a flash, but like shooting stars, they only shined for a moment and have become eternal. Sometimes we will forget, and sometimes we will think of the love that once whizzed by. If we had not been so stubborn, would we still be so regretful? If we had not cared so much about the outcome, would our journey have been more beautiful. I hope that every time you turn the pages of the book, you will recall the boy who once appeared and then disappeared.