Even though he was blind, Robert was able to to see people for who they were. People have said that when someone loses or doesn't have one of their basic five senses the remaining senses become stronger. Since Robert didn't have sight his hearing was better. He took advantage of that and made sure that he listened to all the things people have told him. The main conflict of "Cathedral" was man vs self. Bub's problem was that he had expectations on how everyone was going to act with a blind man in the