What do you mean, it's the end of the moon?
Clouds have dispersed, snowflakes have melted, flowers have withered, and the moon has set in the west. "Cloud, snow, flowers and waning moon" is an expression in poetry, which is often used to describe the change of scenery. Its main meaning is: the clouds have dispersed, the snowflakes have melted, the flowers have withered, and the moon has set in the west. The "que" here means "lost and disappeared", which means that the moon has lost its previous perfect state. In a word, time is gone forever, and the scenery changes with time, conveying the irreversibility of time and the brevity of life. The whole sentence can be used as an insight into the reality of life and an expression of the passage of time.