Reality In The Narrator's Poem, Cathedral

In “Cathedral” the author focuses on the narrator’s reality. In the beginning the narrator based his vision of Robert the blind man, on images he has seen in movies. The narrator uses his wife’s descriptions, the tapes, and his vision of Robert to get to know Robert.
The narrator’s wife met Robert one summer in Seattle when she needed a job. On her last day of work the blind man touched her face. She tried to write a poem about it because this was something that was really important to her. She tells the narrator about Robert’s wife Beulah. When she let the narrator know about her pieces of the story begin to fall into place. However, the narrator does not like that Robert could not see Beulah. He was upset that she died and could’ve never