Anyone who knows the pangs of anticipation can relate to the premise of this song: The waiting is the hardest part. Tom Petty explained: "That was a song that took a long time to write. Roger McGuinn
swears he told me the line - about the waiting being the hardest part - but I think I got the idea from something Janis Joplin said on television. I had the chorus very quickly, but I had a very difficult time piecing together the rest of the song. It's about waiting for your dreams and not knowing if they will come true. I've always felt it was an optimistic song."