Life is like a circle, with ups and downs but always circulating between the starting point and the end point.
It's like a Ferris wheel that has been going in circles for a lifetime. When it spins and sets off with brilliant and dazzling light, the grid is filled with happiness; when it sends you to the top to overlook the earth and see the small mountains, happiness turns into passion; when the sky is so close and you think you can reach it, the grid returns to the bottom.
But one day it broke, and the happy grid was no longer gorgeous. It finally became a ferris wheel that was swallowing and inescapable, a black ferris wheel.