I'm new here so if I put this in the wrong place, I apologize.
I know a lot of people have been going on about the "ho ho ho" thing and the possible hollow earth theory, but I think I figured it out. With several metions of Charles Dickens already in the show, It hit me like a ton of bricks yesterday. Hurley if visited in Santa Rosa by 3 three "spirits" Abadon, Charlie and Jack. One wants to know about the past, one wants to know about the present and one wants to know about the future. This episode is A Christmas Carol.
WHich one wanted to know about the future. Abadon and Jack were both asking about the past.