What does the poem "The Imperial Army Recovers the Banks of the Yellow River" mean?

Rhyme translation:

Suddenly I heard in Jiannan that I had recovered Jibei.

When I first heard it, I felt sad and happy, and my tears were all over my clothes.

Looking back at his wife and children, where is the worry?

I'm so happy to roll up my poems at will!

During the day, I will drink and sing loudly;

Bright spring is my companion, so that I can set off for my hometown.

It seems to have crossed the Wuxia gorge from under the dam;

Soon arrived in Xiangyang, and then rushed to Luoyang.