By Lisa Miller for newsweek.com on 19 Jan 2008
Reincarnation, according to the Merriam-Webster dictionary, is "rebirth in new bodies or forms of life; especially: a rebirth of a soul in a new human body." This ancient belief, a core belief of more than 800 million Hindus, has been in the news, most recently because of allegations in Andrew Morton's new book, "Tom Cruise: An Unauthorized Biography."