It is important because this is what pulls everything all together. This is where the main character is introduced and the character that is telling him an important story is introduced as well
I think it is imagery because it makes you imagine what it looks like, but it could be slant rhyme because the last word in each line rhyme. I would personally go with imagery but I'm not sure. -- Hope this helps
Answer:
It has stanzas and are written like a song, and most of them rhyme, they have a deeper meaning