Found this on ABC LOST Site, supposedly words from someone at Bad Robot with his take and clarifying things. Don't know the original source other than that. It makes sense to me. Rousseau is mispelled several times, so don't know if that's a transcribing error or an indication someone made it up, but, it does make sense with what we saw, and helps clarify things, even if it's only someone's theory, and not real information from a Bad Robot employee who is on the inside and knows real information.
http://forum.lostpedia.com/someone-bad-robots-take-finale-t59261.html?
First ...
The Island:
It was real. Everything that happened on the island that we saw throughout the 6 seasons was real. Forget the final image of the plane crash, it was put in purposely to f*&k with people's heads and show how far the show had come. They really crashed. They really survived. They really discovered Dharma and the Others. The Island keeps the balance of good and evil in the world. It always has and always will perform that role. And the Island will always need a "Protector". Jacob wasn't the first, Hurley won't be the last. However, Jacob had to deal with a malevolent force (MIB) that his mother, nor Hurley had to deal with. He created the devil and had to find a way to kill him -- even though the rules prevented him from actually doing so.
Thus began Jacob's plan to bring candidates to the Island to do the one thing he couldn't do. Kill the MIB. He had a huge list of candidates that spanned generations. Yet everytime he brought people there, the MIB corrupted them and caused them to kill one another. That was until Richard came along and helped Jacob understand that if he didn't take a more active role, then his plan would never work.
Enter Dharma -- which I'm not sure why John is having such a hard time grasping. Dharma, like the countless scores of people that were brought to the island before, were brought there by Jacob as part of his plan to kill the MIB. However, the MIB was aware of this plan and interferred by "corrupting" Ben. Making Ben believe he was doing the work of Jacob when in reality he was doing the work of the MIB. This carried over into all of Ben's "off-island" activities. He was the leader. He spoke for Jacob as far as they were concerned. So the "Others" killed Dharma and later were actively trying to kill Jack, Kate, Sawyer, Hurley and all the candidates because that's what the MIB wanted. And what he couldn't do for himself.
Dharma was originally brought in to be good. But was turned bad by MIB's corruption and eventually destroyed by his pawn Ben. Now, was Dharma only brought there to help Jack and the other Canditates on their overall quest to kill Smokey? Or did Jacob have another list of Canidates from the Dharma group that we were never aware of? That's a question that is purposley not answered because whatever answer the writers came up with would be worse than the one you come up with for yourself. Still ... Dharma's purpose is not "pointless" or even vague. Hell, it's pretty blantent.
Still, despite his grand plan, Jacob wanted to give his "candidates" (our Lostaways) the one thing he, nor his brother, were ever afforded: free will. Hence him bringing a host of "candidates" through the decades and letting them "choose" which one would actually do the job in the end. Maybe he knew Jack would be the one to kill Flocke and that Hurley would be the protector in the end. Maybe he didn't. But that was always the key question of the show: Fate vs Free-will. Science vs Faith. Personally I think Jacob knew from the beginning what was going to happen and that everyone played a part over 6 seasons in helping Jack get to the point where he needed to be to kill Smokey and make Hurley the protector -- I know that's how a lot of the writers viewed it. But again, they won't answer that (nor should they) because that ruins the fun.
In the end, Jack got to do what he always wanted to do from the very first episode of the show: Save his fellow Lostaways. He got Kate and Sawyer off the island and he gave Hurley the purpose in life he'd always been missing. And, in Sideways world (which we'll get to next) he in fact saved everyone by helping them all move on ...
(Conitnued next post)