It's a famous old chinese poem. you can read more about it here: https://baike.baidu.com/item/何事秋风悲画扇/64791 If you want a quick rundown, it basically means "if life was like a first meeting it would be so much more beautiful, because that way we won't have to suffer the pain of parting"
please use english in the title next time. a mix of english + non english like the thread below is fine. but not all non-english. https://forum.novelupdates.com/threads/anyone-knows-how-to-translate-外墙楼体电子屏.115433/