the details explaining the current living conditions the old man finds himself in is the

Here is a good quote from the story that should suffice,

"The shack was made of the tough budshields of the royal palm which are called guano and in it there was a bed, a table, one chair, and a place on the dirt floor to cook with charcoal. On the brown walls of the flattened, overlapping leaves of the sturdy fibered guano there was a picture in color of the Sacred Heart of Jesus and another of the Virgin of Cobre. These were relics of his wife. Once there had been a tinted photograph of his wife on the wall but he had taken it down because it made him too lonely to see it and it was on the shelf in the corner under his clean shirt."