The Avocado Tree
Gary’s grandfather is very fond of his avocado tree. He explains that the tree grew like the family, and that “[t]he wind could move the branches, but the trunk, thicker than any waist, hugged the ground;” therefore, the tree symbolizes the strong bonds between his family members. Moreover, its roots symbolize Gary’s ties to his hometown.
Gary's Bike
When Gary gets a bike, he rides around the neighborhood, exploring new areas that he has never been to. Thus, the bike symbolizes Gary’s increased independence.
Gary's Haircut
Even though his mother told him not to go to certain areas because they are dangerous, Gary plans to ride his bike there anyway. He describes his haircut as “devilish horns,” which symbolizes his rebellious attitude because he knows defying his parents is a sin.
The Rolling Stones
Whereas Gary used to sing along to The Beatles as a young child, he prefers The Rolling Stones in his teenage years because they symbolize rebellion and disrespect, which he can identify with: “The Beatles seemed like they would wash their hands before eating, while The Rolling Stones would laugh and urinate on a wall.”
13 Chapters
Each of the three parts of the book is divided into 13 chapters. The number 13 is considered a symbol of bad luck, which could indicate that Gary’s life is framed by misfortune as well.