I’ve read this story a few days ago the answer is it helps you understand what is going on and how the people feels and the mood in the story by using certain words and descriptions.
The citizens of Amaia
impoverished by war was trying to unearth a treasure that would save them from
their suffering. The frustration in this part is being impoverish during the
war and aggression is when they try to unearth a treasure within the Earth’s
soil.
Separate from each other and stay away from each other until the boat come back