The main reason is that things have changed, and the mountains and rivers are still there, but the teenagers at that time have disappeared.
Falling flowers deliberately follow the running water, and running water has no love for falling flowers;
Metaphor is the ups and downs of love between men and women. One side is affectionate, and the other side is unintentional. On the issue of love and marriage between men and women, wishful thinking, ruthlessness and unrequited love are similar.
Need to know:
Green mountains and green waters are still there, from the Song Dynasty stone "Continued Lantern Record Wenzhou Longxiangjue Zen Master": See it, but not see it. Seeing is far from seeing, but seeing is out of reach. Falling flowers deliberately follow the running water, and the running water loves falling flowers mercilessly.
Translation: I didn't see it when I saw it. You can't see it when you see it. You didn't see everything. Falling flowers follow the water, but water doesn't like falling flowers.
Appreciation: Extended idiom "Falling flowers are intentional, running water is ruthless". Metaphor is the ups and downs of love between men and women. One side is affectionate, and the other side is unintentional. On the issue of love and marriage between men and women, wishful thinking, ruthlessness and unrequited love are similar.