The following is a part of the SAT sample questions (questions 5-8 of Passage-Based Reading section)
After the intervention of six or seven years I again entered the doors of a theater. That old Artaxerxes evening had never done ringing in my fancy. I expected the same feelings to come again with the same occasion.
At the age of six the author visited a theater for the first time. He was strongly impressed by the theater itself and Artaxerxes which was performed there. The quoted sentences above describes his second visit to a theater six or seven years later. In the rest of the passage he recounts how he was disappointed with the second visit. In the end he concluded that this change was caused by his growth.
I cannot understand the second sentence in bold type. I would be grateful if someone could help me understand it.