This actually my first review, so please be nice. :-)
I can't describe how good this episode is! The Second i saw Four-Toed Statue i understand that the writers are going in to deep mythology here.
This episode feels like a Game-Changer again, after Through the Looking Glass where they were stuck in the future, in "LaFleur" The Losties are stuck in Dharma-Time!
It was from Season 2 that i wanted to know more about the Dharma Initiative and finally i think we're going to find so much answers in the future episodes. Keep it work, this is the best show ever!