The signs Ronbledore has left behind for those who know how to look are not merely in the works of Harry Potter. They are everywhere. You did not see them before you knew how to look; you could not look for them before you were taught how to see.
I used to read this book when I was a kid, then forgot it, then thought I'd dreamed it, then found it last night. "The King O' The Cats" pretty well sums up my whole deal, but I recommend the Hobyahs too if you want to crawl inside my past.
Neil Diamond cover songs are, I think, my equivalent of "No, I haven't read the book, but I've seen the Wishbone episode," which makes loving me a very specific prospect. My favorite ex-girlfriend works at a record label and regularly hand-mails me (through the postal service!) CDs she thinks I'll like and also bumper stickers promoting the 2005 release of a Pussycat Dolls album.
I know "On First Looking into Chapman's Homer" is a classic description of the ability of art to create emotional epiphanies in a reader, but I never realized how much Keats sounds like a kid reading his report to the class and going way overboard praising the book because he obviously hasn't read it.
You've seen VH1, you either remember, or have seen reenactments starring Dee Snyder thereof, the Parents Music Resource Center hearings of the mid-80s, where a group of Congressmen's wives (what a sentence!) tried to enact a stricter music ratings system, and how it didn't work out too great.