The Theme for The Five People you meet in heaven

The them of this book is Ones action triggers another action and it is a chain. I think this is the theme because it is talked a lot about in the book and it is pretty much the main storyline. The theme means that one persons action will trigger someone else to have a certain action and that certain action of the other person will do the same. It is like a very long line of actions and what they make people do.