The word harbingers as it is used in this excerpt is a person or thing that announces or signals the approach of another.
Ambiguous.
It will be an "ambiguous" ending.
This portrayal is depicted in the image of the child who, although dead, lifts his fists, as a sign of resistance. Thanks to the oppression, the child is dead in his mother's arms, "with a bullet through his brain". But thanks to the people's undying urge for freedom, he isn't dead after all. He lives in their memories. He lives as a symbol of their desire to break free and their resistance to brutality and tyranny.
