Although it was early the heart already hung heavy in the air.
B) the reason for writing
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.
A. Familial love is more important than outward appearences
Answer:
The key to building suspense is making readers care about characters they slowly learn more about.