Light vs. Dark, The Beach vs. The Dark Territory

Jacob lives on the beach, his Nemesis, in the jungle. These two locations are very telling. The beach is out in the open. Meanwhile, Nemesis is creeping through the brush and the darkness. He pops out of nowhere and blindsides you. He sneaks up on you. He is deceptive.

Considering this, notice the following:

Jack argues to move inland to the caves, away from the hope of rescue.
Yemi stands at the edge of the jungle and baits Eko to his death.
Walt lures Vincent, and as a result Shannon, into the jungle, to her death.
Locke retrieves Sawyer from the beach so he can kill Cooper.
Ben's mother lures him into the jungle where his seduction by The Others begins.
Christian lures Jack into the jungle.
Charlie, after finding drugs in the jungle, kicks his habit and lives on the beach.
Radzsinsky, a man who is very much into Orders(dark side), digs up his swan(repetition, not progress) under the protection of the natural jungle camouflage.

The jungle is where Smokie lives, in The Dark Territory. Pretty literal. It's the Dark side's territory. You won't find Smokie on the beach..how come? Nemesis can only enter the beach in human form, as he did with Rousseau's team, or when he spoke with Jacob, or when he was Locke.

The further you get from the beach, the more evil the real estate.
Makes you wonder what's inside the temple, which is miles past the wall....there is some serious evil headed our way.