"When we die and then we wake up, then we are zombies. But only if we have been touched by a real life zombie when we are alive."
After he announced this, Eva asked him what happens when a zombie dies.
"They come back like us, only as a baby."
"Is that what happened to you?" She asked. "You were a zombie and you came back as a baby?"
After a moments heavy thought he replies slightly unsure,
"No. I think this is my first time around."
And there you have it. 'Zombie Reincarnation' or 'Buddha eats Brains'.