1. Why are grandparents, according to the poetic voice, "shadows that only I see"?
Los abuelos son solo sombras que puedes ver, ya que muchos de ellos mueren, nos queda solo una mera imagen o recuerdo de ellos, algo que podemos ver, pero no podemos tocarlos porque están muertos.
Grandparents are only shadows that you can see, since many of them die, we are left with only a mere image or memory of them, something that we can see, but we cannot touch them because they are dead.