This may help... https://m.poemhunter.com/poems/irony/
Well "universe of obligation" is when you are neighborly and help each other out. But in the South the "universe if obligation" is simply being Christian. So basically they treat people the way they would want to be treated. Since Miss. Maudie is a lonely woman and is basically helpless, people feel as if they should help someone like her.
<span>1) It is relevant to the topic.
2) It supports the explanation of a point.
4) It provides a specific example.
The evidence in this passage is effective because it does a great job of clearly stating a claim, explains that (with a specific and relatable example), and stays relevant to the main topic. </span>