I remember one day my dad had this song playing when I was ten or eleven. At the time, I always thought I was too young to know what it meant, but in the recent years I went back to it, and still had no idea. The only thing I can think about is, "Mindfuck", at the fullest.

I Am The Walrus - http://www.youtube.com/watch?v=42luHhrsNhg - Beatles
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I think I get when he says, "kicking Edgar Allen Poe", because Edgar's suspected death was cooping. But I have no idea.