I've taken this as yet another drug-related Guster song, with "this tea" as a metaphor for the drugs. Basically, they let you just drop out, and therefore let go of all the pressures to achieve, ie "change the world." "If you want to be free, take a sip of this tea." You get to put off adulthood, and be free from all the pressures that come with it. Also notice that at the end the lyrics change from "...you're never GONNA change..." to "...you'll never HAVE to change the world." I think that sense of obligation--and the idea that you can get rid of it--is really significant.
I've taken this as yet another drug-related Guster song, with "this tea" as a metaphor for the drugs. Basically, they let you just drop out, and therefore let go of all the pressures to achieve, ie "change the world." "If you want to be free, take a sip of this tea." You get to put off adulthood, and be free from all the pressures that come with it. Also notice that at the end the lyrics change from "...you're never GONNA change..." to "...you'll never HAVE to change the world." I think that sense of obligation--and the idea that you can get rid of it--is really significant.