I used to have deja vu in my childhood more than now.. I also searched about this subject. However some communities don't accept it also some religions which is mine. They have another explanations for that. They say when God created us, he showed some parts to our soul from our future lifes. But what about the people who claimed that they lived in another place as a different person? It is very complicated issue.. But you should be an emotional man to search about this topic. Am I right? ;)