Thoughts on "The Host"

My Aunt Jean let me borrow her book of The Host and I devoured it this week. Stephenie Meyer has an incredible mind. Anyways I picked up a few gospel hints in the book and was curious if anyone else noticed or if it was me and my too many English courses.
I felt like the book was telling a little about what our struggle on earth is between the Natural man and the "soul." It was an interesting twist. She talked about how the "soul" needed to come to this Earth or else she would never have felt true love and real sorrow. She said that you needed one to have the other. I felt like this is definately what we teach about why we are here. We need to experience these emotions to see the difference between good and evil. She mentioned that being else where she had always been happy but never felt joy until feeling pain.
Anyways I could go on for a while but I just thought it was really interesting and the more I thought about the more curious I got. What did you think?