What's the function of quoting Yang Wanli's poems from watching the tide? ?

I know, I know! Excerpted from & gt- Be careful, Zhou Gongjin's> Yang Chengzhai quoted (Yang Wanli)' s words that "the silver in the sea is Guo, and the jade in the river is waist-tied" in order to take care of the above words that "it is far away in Haimen, like a silver line; As soon as you get close, Yucheng Snow Ridge will fall from the sky ... "Quoting his poems, we can see that qiantang bore is spectacular and extremely beautiful. .....