
You can let go now Jack.
Rose says this to him in the first episode of the final season as he is gripping his armrest after some turbulence. It wasn't until after the finale that I realized that she was talking about a different kind of rest than one for your arm.
Rose had arrived and was awakened. Jack had a full season to go. He and his friends have been dead all along during the sideways universe. The purpose of the flash sideways(technically a flash forward) this season was for each of the characters to: remember, let go, and move on. The needed to remember their love for each other and let go of their past sins in order to move on into the light.
They all arrived at this at different times, Jack being the last to awaken and Ben, although remembering, has decided not to move on just yet because he cannot let go of his mistakes: I have some things I still need to work out - a reference to a bible verse(work out your salvation with fear and trembling) which was the inspiration for the book Fear and Trembling that Sawyer has been caught reading during the show.
Jack, you don't have a son.
Jacks relationship with his son started off rocky but smoothed out quickly and turned into a perfect father-son relationship. A little too perfect because, in the end, it was all fabricated in Jacks mind as a means to achieving his own redemption. If he could make this relationship work, maybe the failed one with his own father wouldn't still loom over his head.
Similarly, Ben created a world that included loving the daughter he killed. Sayid fabricated a place where he can make a sacrifice to prove his love for Nadia. None of this was sufficient enough for them to find freedom from their past. Desmond realized this and started gathering them together, realizing that they needed each other in able to remember, forgive, and move on. During their lifetime, although many of them died at different points, it was their time on the island with each other that was the most significant.
Jacks journey from season one as a man of science to the series finale as a man of faith was a truly inspiring and believable character arc. It culminates in the moment when he replaces the light that Desmond unknowingly snuffed out. As Jack completes this purpose, his face is filled with such profound joy even as he knows he is dying. Jack found his purpose in sacrificing himself for his friends.
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Random observations: (sorry if some of the things i share are obvious but they weren't to me.)
- The flash sideways world wasn't created by the bomb from the previous season. Nor was it a result of Smocke getting off or not getting off the island. And how did everyone die? Well, outside of Jack and previous deaths from this year and years past, probably by natural means. Hurley and Ben praise one another in making a great number one and number 2, respectively. It can be assumed that they protected the light on the island for years after what we saw.
- the reason locke could move his feet immediately after surgery is because he could always move his feet. he didn't need surgery.
- On the island, everything was real and neccesary. The light needed to be protected because if it went out, the island would be destroyed and the light that is in all men would be gone, leaving only evil.
-'vision remembering moments' is a perfect way to end because its a nice way to summarize and remember the 6 years in the lives of the characters, not the plot. thats why this has always been a show primarily about the characters.






