The most likely reason this passage was included at the end of the narrative is because the narrator is

setting the scene.
explaining the main obstacle.
reflecting on an experience.
identifying people.

The reason is because the narrator wants to reflect on an experience.

Explanation:

That's why in all the narrative's text in the final part is when the writer include the conclusion , or the refletion about the history, or theme.

Always to do the text closing, the writer look for a good and clear idea to show the readers what he wants to say whit all the text.