This poem was a farewell poem by the Tang Dynasty poet Bai Juyi. The whole poem is as follows: The grass on the plain withers and thrives once a year. The wildfire never ends, and the spring breeze blows, it grows again. The far-off fragrance encroaches on the ancient road, the clear green connecting the deserted city. And send the king's grandson away, full of parting feelings. If you want to compare West Lake with West Lake, it's always appropriate to wear heavy makeup and light makeup. I recall this feeling after years of separation.