You should always end on a note that’s likely to stick in the reader’s mind.
Answer:
George and Lennie have a dream: to scrounge enough money together to someday buy their own little house and a plot of land to farm. They dream of roots, stability, and independence. They encounter other dreamers in their travels, those grasping for a tomorrow that seems always just out of their grasp.
The reason why I believe that the author Maya Angelou included this passage is because she wanted to explain to us her emotions about the connection she had.