In the holiday season, if Jacob was the magical Santa, what gifts did he give the islanders?
Santa is an immortal character passed down for centuries. The lesson was that if little boys and girls were good, they would receive presents in their stockings. Some consider that the first parental mind control game. The holiday gift giving traditions corresponds to the bounty of the harvest and cultural imprints to share with those in need. Noble concepts, indeed.
But there were few, if any, noble concepts in LOST.
What Jacob gave most visitors, including his followers, was pain and suffering.
What present did Jack get from the island? Death. He died fighting an immortal smoke monster which we still don't know what it was, what it was made of, and what purpose it truly had on the island.
What present did Locke get from the island? Death. He was murdered by Ben who in a sudden fit of rage subconsciously thought he was protecting the island from Eloise Hawking.
What present did Michael get from the island? Death and imprisonment. His soul became a trapped island whisper. Was Michael's sins any different from the lives that both Jack and Locke took on the island? The answer would be no - - - they were senseless acts of violence.
What did Charlie get from the island? Death in a senseless, but noble way. Charlie sacrificed himself to contact a rescue boat, but then warned Desmond it was not Penny's. Charlie only wanted to save Claire, but by dying he lost that opportunity.
What did Jin and Sun get from the island? Death. When Sun was trapped in the submarine, Jin stayed with her knowing that their decision would leave their only child an orphan. Normally, a parent would do anything to help their child, to protect her and support her. Jin's death was really a senseless suicide.
What present did Kate get from the island? She got the marshal killed, and she got the chance to continue to run away from responsibility and accountability for her actions. She never got punished for the men she killed. She got a free pass and a Get Out of Jail Free card.
What present did Walt get from the island? He got the status of being an orphan after Michael died, and he lost his dog, Vincent. At best, he got a normal life living with his grandmother, but he was still haunted by his island memories.
What present did Sawyer get from the island? He got only a short glimpse of a wonderful, normal relationship with Juliet. But then the island killed her off in a bizarre incident at the Hatch construction site. So he left the island still a bitter man.
What present did Sayid get from the island? He got an even shorter glimpse of a physical relationship with Shannon. But then the island killed her off in a senseless accident. The island turned Sayid back into the dark torture monster of his past; a self-loathing character with nothing to live for (even though he had pined for decades over his lost Nadia) and eventually perished only to be reincarnated as a evil minion. He would die trying to do something noble, but wound up killing more of his friends.
No, Jacob's and the island's graces to the castaways were not holiday presents. It was a struggle; a lot of pain and suffering; and death.