Since I haven't read the novel, I would say the general purpose of telling dreams is to share your vision or special event that happened in your imagination. The ability to remember dreams is really good, because most people will forget. While you can tell dreams, try see if you can still visualise the dream. Some dreams can be in black and white, and some can be in colour. Dreams have no limit, they take you to your own little world.
I think it is this: When she and the girl happened to be out of the house together, she would say something and add the name Hulga to the end of it, and the big spectacled Joy-Hulga would scowl and redden as if her privacy had been intruded upon. She considered the name her personal affair. <span />
The other man tells the narrator that the rich people don't care about them so why should they care if one of them gets robbed so they can eat. The narrator realizes that even rich people have problems in their life and lots of people are unhappy with their lives even the more fortunate ones.<span />