Also on these boards
The Tunnel - The C2 class loco charges out of the tunnel just up from Mifengyan station on the Shibanxi narrow gauge railway, Sichuan Province, China. © David Hill December 2008.
The tunnel represents Charlie's friendship with both Sam and Patrick. They are Charlie's closest friends and he experiences senses of freedom with them. Unlike Holden, who does not have any close friends who he can rely back to, while Charlie does have Sam and Patrick.