Cathedral Narrator

The narrator of Cathedral has a genuine issue with blind people in the beginning of the story.  Throughout most of the story he has nothing but rude things to say of his wife's blind friend Robert.  He is completely unsympathetic towards the mans handicap and at times he seems to be angered by the disability.  The jealousy aspect is more fathomable to me but that doesn't seem to be his entire issue with Robert.  The third act of the story begins to change these emotions once the narrator's wife falls asleep and Robert asks him to describe the cathedrals.   As the night ages, the drunk and stoned men draw a cathedral together.  When Robert asks the narrator to close his eyes as he draws you can tell it is an enlightening experience for the character, and he understands the blind man much more.