If you can't make that out, it says: "Dear Dad, I've made up my mind, when I grow up I'm going to Tennessee to sing country music, maybe in Opryland."
(Instead, I became an editor and learned when a period or semicolon would be more appropriate than a comma.)
I even addressed this very important folded piece of paper. And drew a stamp. Why my mother did not merit informing about this great plan, I don't know. Even today, I tend to call Dad when I want to talk career stuff, so maybe that started early. Mom's the one who saved this artifact in my baby book, though.
In any case, I think it's kind of cool that I ended up living in Nashville, even if the whole "country music" dream went by the wayside, in part because I never actually listened to country music until after I moved to Nashville, and then only for a time in a "can't beat 'em, join 'em" kind of way. Christian publishing is Nashville's other big business, so I guess it's a good second. :0)