A Thousand pieces of you, looks at what it would be like to travel through parallel universes, with your soul or spirit, taking over the body of you in that world.
It is a book full of love and death. The tale of several souls, as they try to right the wrongs of one universe, by finding answers in the others.
If fantasy is your thing, that this is one of those must read books.
Better still, I had the audio of this one, and the way the narrator bought the characters to life was incredible.