I am watching Lost and have just finished watching s02e18 (Dave). I realized, what if all this is some figment of imagination or in some way not real? I would be aghast if this were the case.
That got me worried. I am sure it won't be that stupid. I am dying to know more but each episode takes 40 min and does not reveal much. One thing I am dying to know is, will the ultimate explanation, i.e. what exactly is happening on the island be completely revealed in the last episode of last season only or it will be revealed before the final season and then the story will proceed? (You can tell me which season I can expect it to be).
Please do not put any kind of spoiler.
If you think that knowing the answer to this question is a spoiler in itself or will spoil the rest of the show for me, please just say so and do not answer.