Gearing up for Lost (no spoilers)

Well last week, my time travel theory got shot down. (ie. the universe did not implode when Miles saw himself as a baby. Therefore, at least in the Lostverse, alternate versions of yourself can exist in the same time period.) I would also still like to believe that Sun's not being transported into 1977 with the rest of the Oceanic 6, is not solely a plot device to prolong her long-awaited reunion with Jin. I'm curious about that riddle about what lies in the shadow of the statue too. (Hell, I thought the statue itself was riddle enough, not to mention the temple.)