The ideas which were important was the discrimination and the segregation. This is because the story deals with the narration of the African American family so they are often victim of the discriminatory and the other related practices.
After reading the book, it gave a clear picture of the situation of the African American people living there. It helped in understanding the entire scenario where the practices of discrimination are done against the family.
The point of view is being truth to your self and dont lie and always forgive
'Nobody' is basically contracted in itself, I don't believe you can decrease the word further.
I think its an Idiom. I don't see like or as. So no simile. I don't see he is something like a marshmallow. - No metaphor. I also don't see a non-human thing doing human things- the grass was dancing in the wind. My answer would be an idiom.
Hope this helps!
