How does repetition reinforce the theme(s) in writings?

The use of repetition in a text helps the author keep the main message in the mind of the reader. You will find that the central idea of the book you are reading, is closely tied to the word or phrase often used in the book. Your attention is often drawn to it.

It basically empathizes a point someone is making and can make a speech much easier to read and follow along

Explanation:

you did not put the article. so i cannot answer the question.

are you kidding? from that description of two mansions, you can't figure out which one is bleak and desolate? maybe you should consider looking those words up in a dictionary, if you don't know what they mean already.