"I hope that you will return as a teenager after leaving for half your life." It was a poem from 'Dream of the Red Chamber', which meant," I hope that you will still maintain a pure heart and not forget your original heart after experiencing the vicissitudes and twists and turns of life." This sentence is often used to express love for life and hope for the future. It is used to encourage people to bravely face the challenges and changes in life and maintain a young mentality and enthusiasm for life.