Just what is the meaning behind Lost?

I count Lost as one of my favorite shows, even though it can be maddening. Exactly how can each hour episode have so much action, but reveal so little?

I happened across this post with a theory that seems plausible, very plausible. Almost as if the poster, who did it anonymously through a friend, was in on something from the writers. Hmmm. Conspiracy?

(I just read another person's similar Lost theory here. Click on "Read Theory" to expand the text)