Sand in Cup

She fell from the cloud where everyone thought she was happy. No one stood by her to hug her when she needed comfort most. She gradually walked out of the gloomy time of her life alone and finally regained happiness. It turns out that those people we thought would last a lifetime appear in our lives, but in fact, their unshakable positions can be replaced by others in just a few years. Do we take ourselves too seriously, or are we taken too lightly by others?