Basically saying "You can't see through me" meaning I'm not an easy person to get something out of.
Hey! Your answer to this question is: He wishes he had a better, more exciting life.
In the story he has a wife who is very picky and nags him a lot. When his imagination is turned "on", he was usually the hero in what hes thinking and is happy as can be!
Sorry for it being a late answer, I hope this still helps!
Basically what are your thoughts about Nancy?