Write a 200-word retrospective composition as Bai Juyi.

Xu Lailiang breezes gently, and the river is much calmer than usual. At this time, Xunyang River became confused and open. My friend looked back at the distant horizon in autumn and raised this last cup with me. Like the cold Bai Yueguang at the beginning, I slipped through his deep eyes, and his dark pupils were low. Time to go. Yin said goodbye and floated away with the waves. I know he can't be swept away like a wave and come back in an instant. The departure of my friend made me more sad and lonely. I hold an empty glass, which is full of white moonlight, and some of it has been sprinkled on my hand. The cold gradually penetrated my heart.