Through the ups and downs of the rivers and lakes, walking on the road of life, companionship, hand in hand. Look, the muddy mountain road, the barren years, the wind and rain, the silhouette is vaguely in front of you. Unexpectedly, time has passed, and it is worth looking back. Things have changed from the past and the past. A lonely figure appears in the mountain stream. If you want to retreat, there is no way to go back to the setting sun; if you want to advance, it is already a candle. This memory, along with the long road, spreads endlessly...