What does it mean to see Wutai Mountain with Qing at the age of two thousand five hundred?

Secondly, at the age of 2500, seeing Wutai Mountain with Qing means that I have spent another 2500 years to meet you again in Wutai Mountain. Second, I'm 2,500 years old. Seeing Wutai Mountain with Qing is a poem in the Tang Dynasty poet Bai Juyi's Farewell to Ancient Grass. Artistic conception expresses that in the natural environment, human life is short, but mountains and rivers are eternal, thus giving mountains and rivers more meaning and value.