There are no extra pieces in the universe. Everyone is here because he or she has a place to fill, and every piece must fit itself into the big jigsaw puzzle.
When scientists are asked what they are working on, their response is seldom 'Finding the origin of the universe' or 'Seeking to cure cancer.' Usually, they will claim to be tackling a very specific problem - a small piece of the jigsaw that builds up the big picture.
'Saw' is like a big jigsaw puzzle. When you put a jigsaw puzzle together, you put the bottom left corner together first, and then you find yourself working on the upper right corner... That's the way 'Saw' plays out.
The experience of life that you and I have is pretty much a jigsaw puzzle in the box: Day-to-day experiences of disconnected pieces that don't seem to justify the efforts we make each day.
I wanna make a jigsaw puzzle that's 40,000 pieces. And when you finish it, it says 'go outside.'