Answer and Explanation:
The quote by Boccaccio is said that the people who are affected by the plague, which is a disease that affects both humans and animals, are able to have their lunch, or food while they are still alive, and have their dinner with their ancestors, or "have food" when they past away (die from the plague).
Its saying that they aren't going to survive for long, as dinner comes after lunch, which is a short amount of time between the two periods, which is why Boccaccio uses lunch and dinner.
#teamtrees #PAW (Plant And Water)