The Laura Palmer mystery was supposed to be the opening chorus to a much larger song, but the show got cancelled. I have always viewed Twin Peaks the place as infinitely bigger than the main mystery itself by being packed with dark undercurrents that we were just tapping the surface of before ABC pulled the plug. The history of the town and offbeat characters were so rich that there were bound to be a plethora of more stories both large and small that could have easily carried the show through many seasons. We the fans got what we were given, not everything the writers had to say or tell about yet another tale about life in Twin Peaks. We'll obviously never know where it was going fully, but ironically the way the show was cancelled and with the release of FWWM the TP mythos ended up forming a perfect golden circle that we as fans can all appreciate and be satisfied with for the rest of our lives.
PS - JFK, you crack me up how passionate and fired up you get about this stuff and I mean that in the most endearing way
"Harry, I'm going to let you in on a little secret. Every day, once a day, give yourself a present. Don't plan it, don't wait for it, just let it happen. Could be a new shirt at the men's store, a catnap in your office chair, or two cups of good, hot, black coffee. Like this." -Dale Cooper