What motivates the narrator to overcome his distinctive antipathy to the blind man in "Cathedral"?
In the story "Cathedral" the man is unhappy about having to entertain a blind person. He seems uncomfortable at having to figure out how to relate to the man and does not really view the blind man as normal.
The two men relax in the evening and eventually a beautiful cathedral comes into view on the television. When the blind man asks the man to describe it, he finds that he does not have the ability to describe such a thing of beauty in a way that someone blind can relate to it. The blind man asks him to draw it, but the man feels that he is inferior in art. The blind man takes the man's hand as he draws the cathedral.
The act of the man drawing the cathedral and taking the blind man on a journey of movement connects them in a very different manner. The man is amazed that by drawing he is sharing the experience with the blind man which opens himself up to seeing things in a new way as well.