Who knows the soul of Mengda? Which poem is it? what's the meaning

First, this is a poem by Xia Zheng. Its name is "Master Book of Fan Er Yun in Qingxi". The original poem is as follows:

To give gifts to the emperor, the corner of Tianya Pool is like a spring.

I forgot all my money in those days, but I just want to be poor today.

Who knows the soul of Mengda Chen Feng?

When Haibang saw it, it was like a lifetime ago, and his heart knew each other.

Second, explain this poem:

I want to thank the emperor for his endless kindness. As long as the emperor allows, even if I travel all over the world, my heart will be as warm as spring.

We suffered a lot in those days, but now we won't care even if we are poor.

I am now in my hometown, but my heart has already arrived at the imperial court, and I still care about state affairs.

As long as our hearts are together, even the ends of the earth will feel at home.

Third, the author's supplementary explanation:

The author of "Master Book of Two Rhymes of Qingxi Fan" is Xia Zheng, whose name is Qing lay man and Xitang old man. His ancestral home is Gwangju Gushi (now Henan). Later, he entered Fujian and was from Fuqing (now Fujian). Yingzong Zhiping for four years (1067), Jinshi. Transfer state justice to join the army and install doors in prison.