Song Xiao walked side by side with it, followed by birds and fish. It's a pity that we live apart and don't peek at old friends. what's the meaning

According to my understanding, it is: Ah, this is a poem by Zhang Jiuling.

The environment written in the first two sentences is followed by emotion.

That is to say, there are pine bamboos on both sides, poultry on land and fish in the river (typical rural environment, very good. Unfortunately, the distance is too far for friends to see.

If the level is a little worse, you will understand.