It's actually a reference to One Tree Hill
*listens to retching in the background*
It represents, at least to me, the struggle between self and society, to fit into society while still defining oneself as an individual, and the struggle between childhood and adulthood. I think they both last for your entire life, and a lot of people give up on it (both individuality and childhood), so it's also a reminder that I'm not just what everyone wants me to be and I can always find pleasure in the simple things in life rather than being entirely devoted to a job and the pursuit of money.
And it will always be a reminder of who I used to be (who I am now), and I like that person, and I think he's a good guy, and I'd prefer not to lose him.