Raymond Carver's "Cathedral"

My first assumption when I read the title of this short story was that it was going to be about religion or lack of religion, but what I couldn't figure out after starting to read this story was, why did he choose the name "Cathedral"? I think that title is chosen because it's the turning point in the story when the husband has his first real interaction, real connection with Robert or referred to by the arrogant husband as "this blind man". It's funny how we never learn the names of the husband or wife, but we do learn "this blind man's" name. The husband comes across as a close minded jerk who, admittedly, bases his idea of what ALL blind people are like solely off of what he sees on his television. Initially, he wanted nothing to do with Robert. The husband makes that obvious in paragraph one when he stated "And is being blind bothered me" and "A blind man in my house was not something I looked forward to." As arrogant as the husband is, I know there have been times when I have been closed minded to the unknown and people I know have been just the same. I work with a lot of Native Americans, and unfortunately there is a burden of a stereotype that goes with Native Americans from the under educated of the subject matter. Assumptions like they are drunks and live on welfare and just own casinos. I'm not sure though that the husband is really disgusted, it's almost like he is jealous or maybe just tired of hearing about his wife's past and hearing about Robert. I don't know if he is actually disgusted by blind people, or more the fact that Robert and his wife are so close and he is feeling left out. Robert can do it all, except see. I did enjoy how the story started out with the husband being so very, very, cold toward Robert coming over, because that way the short story could show the almost 180 degree turn the husband has toward Robert at the end when he refuses to open his eyes. Like he is feeling the most content he has felt in year, and although his eyes are closed, can see clearly by the end of the story.