Lyric discussion by rubyhorse21 

I heard in an interview with paul m. that this song was about acid. rumor had it that once you took that drug you where never quite the same and could never get back to that original high becuase it was a "...day tripper one way ticket,yeh." It is also about paul's struggled with peer pressure within that group to try it that is why it took him "so long to find out, but [he} found out."

I believe so, too! On "The Beatles Anthology", when Paul is talking about LSD, they start playing this song.

@rubyhorse21 I have to agree it's about drugs. Would be nice if you could link to your source, though. But I know it's been over 10 years since you wrote that comment. Fuck I'm getting old.

An error occured.