Poetry appreciation 1. How to express "worry" when the guest is like water? 2. How do the last two sentences express the poet's mood?

The author of the first two sentences of this poem has been abroad for a long time. Although he has gone home by boat and gone with the flow, his homesickness still haunts him from time to time. After the last two sentences, I suddenly heard my hometown dialect coming from the window of the boat. The poet felt very cordial and refreshed. I only feel that the bright moon in my hometown has been hung on the bow and people have arrived home. The joy is beyond words. Before and after the contrast, the idea is unique, and the homesickness is more touching.