This show, creates a different dimension or place, that no rule doesn't apply to it, the show gives you some hint and rule about this place, and pretty soon it breaks them, its been 3 season that director and writer had only created new riddles and puzzles, i promise you even themselves doesn't have a single clue or answer for these questions, we have seen the same situation with LOST.
So basically just to keep it entertaining, they create more questions, more monsters, more troubles, you shoul start giving answer after second year man! You should respect your audience!
I feel like i have wasted my time.