[This was a comment Ping33 made on my review of the most recent LOST episode; since it was really interesting, and much bigger than the post to which it appear as a comment, I thought I would bump it up here.]
It's fairly clear to me what the nature of the island is: It's faerie-land. Between the stealing of children, the displaced time and the healing effects it has every single one of the standard faerie tropes. Ben is the human become king ala the children in the Lion the Witch and the Wardrobe. The fact that he was not "born on the island" as he first claimed is a key point, but like the kids in Narnia he was "born again" on the Island. Under this reading: Jacob Becomes Oberon.
Why can't women become pregnant? The long stated inability for Faeries to have children and necessity for them to steal human ones.
When did Clare's child become safe? When he was baptised! Then he was no longer at risk of being stolen (and replaced with a changeling?)
How to easily explain the Dharma logos elsewhere in the globe? multiple entry points to the faerie realm. Why, in the flash forwards is everyone (except Kate) Miserable? Because they've 'eaten the food' and left a part of themselves in the faerie land and are now can not feel complete in the mundane world.
Lost ticks all of the boxes religiously, perhaps there hasn't been much written about this because its so damn obvious... Maybe I missed the critical entry on this very blog. But I can't get into any kind of discussion about the mysteries of the show without mentioning it.
[Ping, when you say it like that it all seems really obvious; but for all the individual observations which I discovered on my own, I had not assembled them together in this way. What makes LOST fascinating to me is they way its mythology collides -- everything you have said makes sense, as does the theory that the island is Purgatory, or that it is some kind of singularity, or that the smoke monster is a cloud of nano-bots (a theory the creators have actively rejected); what knocks me out is the way these are are layered on one thing, and I hope the ending reveal, whatever it is, provides a way to not simply dissolve these readings as mostly mistaken.]
[What do you make of Jacob being "bound" in some kind of magic circle of ash? That kind of apparently "magic" mystery has more in common with your faerie-theory than all the sci-fi stuff.]