There are two stamps in this world, one says 'Don't lose' and the other says 'Don't forget'. As long as you send the letter with the Don't lose stamp, the sincere person in the past and present life will receive it. Use that don't forget stamp again, and a sincere person will mail the letter back. Although there is always incomplete beauty in this world, she knows that Yi Zixiao loves Mu Nianqing, and Mu Nianqing also loves Yi Zixiao, and she really has no regrets anymore. As written in that poignant poem, "Don't forget each other when we are apart, we look at each other across the world." '