I think (at least to me) the lyrics are trying to say that theres this boy who really likes this girl, and that even the simplest of things i.e. 'walking on train tracks' or 'swinging' are taken as precious gifts when your around people that you love. It also kinda feels like theres probably alot going on in the girls life, and the boy is just trying to do anything he can to take her mind off of it.
I think (at least to me) the lyrics are trying to say that theres this boy who really likes this girl, and that even the simplest of things i.e. 'walking on train tracks' or 'swinging' are taken as precious gifts when your around people that you love. It also kinda feels like theres probably alot going on in the girls life, and the boy is just trying to do anything he can to take her mind off of it.
It's a really sweet song=)