I'll do this the lazy way, at first, just to get things started here...I'll copy one of my posts from another thread, about this same subject.
I believe in reincarnation. When we die, we go to a 'waiting place', in my mind somewhat like the middle section in the first Narnia book...the forest with lots of little ponds, each one leading to one world. How long we wait between each life is up to each one, time is rather irrelevant there. I don't believe in a supreme being granting out lives and bodies, we chose ourself where to go, and who to be. We chose our parents, and thus also our looks, in some sense. I don't believe we are limited to this world alone, there are several different worlds, or realms, and we can be reincarnated on either one of them.
I've been taught by new agers...of course i believe in ascension. Reincarnation isn't a neverending cycle, it's a learning process. Each life is a lesson, how you perform determines wether yuou need to repeat the lesson or not...it's up to you wether you want to learn, evolve, or wether you want to remain stagnant.
Stagnant isn't necessarily bad, sometimes a break from the climbing is necessary, like a vacation life. Sometimes issues and problems from past lives will follow you into the next, to give you a chance to deal with it, and get it overwith. A neighbour you had a fight with, and never really were able to forgive, might show in your next, as someone close to you, a teacher, a family member, a boss/coworker. The relationship, and initiate emotions surrounding that person will be the same. I believe this could be a reason in some of the cases where you just instantly dislike a person, for no apparent reason. Or, in the opposite cases. Past life's lovers, children, best friends.
Everything you learn, everything you experience, everything you do, shapes you into who you are and who you'll become. Your choices determines your personality, and your Karma. I wonder a bit about Karma, wether it may not be just the New Age way of inflicting the Great Guilt of organised religion...if your life is hard, it's because you've been bad in your past life. It sounds a bit too easy. In a lot of cases I think hardships are just as much a result of your own choices in this life, and right before this life, when you chose your starting point. If your father is abusive, it may be bacause you inflicted pain upon others in your past life (Karma version, you reap what you sow), but it may just as well be because you wanted to learn what it is like to endure pain, and fear, in order to overcome it. A test of strength. Or it could be just plain bad luck.
I won't completely rule out the power of Karma. Your actions will have consequences. And to return to Ascension, the ultimate outcome, Karma will determine wether you reach it or not. The way I've had ascension explained, as you go through your lives, learning and improving, you will slowly evolve mentally. This is mostly a spiritual thing, you won't turn into Superhuman. But Buddha, and in some cases Jesus, are good examples of what is possible. Your mind, and your way of perceiving the world around you, will change, forced limits will dissolve, and you'll be able to do things our modern mindset thinks impossible. There is no such thing as impossible, some things are just a bit trickier than others.
This would be my personal opinion on the subject, now onto the documented accounts. First off, children... 'Many children remember their past lives-spontaneously, without hypnosis or prompting. Some as young as two and still in diapers blurt out, "I remember when I died before" or "My other Mommy had curly hair". They often describe details that they had no way of learning in this life.'
http://www.childpastlives.org/com/chapter1.htmAnd even better account is to be found here:
http://www.near-death.com/experiences/reincarnation07.htmlThe reincarnation of Jeffrey Keene.
Also check their main page:
http://www.near-death.com/reincarnation.html