When does the boy in "Araby" experience an epiphany and what effect does it have on him?

The epiphany gained by the young man happens at the very
end of the story.  He has had his crush on his friend Magnan's sister for a awhile, and
he has his plan to go to the bazaar, Araby, and bring back something special for the
young lady.  He has built up Araby in his imagination to something very special. 
Unfortunately, he is delayed in his getting to the bazaar and by the time he arrives it
is already closing down for the night.  Several shops are closed or closing up and the
one that is still open has a very disinterested sales girl running the place.  She is
more interested in flirting with boys than helping the young man of the story.  The boy
is incredibly disappointed by the entire experience.  His epiphany is that the reality
of things can never live up to the build-up created in the imagination of those things. 
He went to Araby as a young naive boy, but he loses that innocence in the passing of his
time at Araby.  He will return home empty handed and forever
changed.