The next sentence "The seas run dry and the rocks crumble" means that this will never change. Describe a long history, everything changes, habits swear, set off a firm will and never change. Jin Yuanhao's "Song of the West Building" is dry and rotten. If two mandarin ducks fly together, they will die until they die. From the Doctrine of the Mean, the country has no way and will remain unchanged until death. There are similar sentences: love Chunhua, and don't forget when you are happy. Born to return, died for Sauvignon Blanc. From the Han Dynasty: Su Wu's Keeping a Wife. I cherish every minute of happiness and I will never forget to love each other. Such a happy time. If I am lucky enough to live, I will definitely come back. If I die unfortunately, I will always think about it.