Window Sill Meaning

There is a pot of flowers placed on Xu Yi's window sill, which has not sprouted for a long time. In the past, it bloomed as enthusiastically as her youth, dazzling in the sun, but now it is as regretful as it was then. She always regrets her choice and always thinks about what it would have been like back then, but her youth has passed by like a fleeting moment, leaving behind a gust of wind. At that time we just thought it was ordinary.