We are not these bodies - reincarnation is a law of nature. We are spiritual beings encased within these bodies. When we die, depending on our consciousness, we acquire another body.
Dr. Jim Tucker is a medical doctor & scientist studying past life memories of children using genuine scientific methods. He has written books on this subject matter clearly documenting the memories of children of their previous lives. From a spiritual perspective, it is a clear evidence to show that the consciousness survives the death of the body and moves on to other realities. Why then are we obsessed with our body? All social, economic, religious and political problems stem from a bodily concept of life.
For more information on Dr. Jim Tucker and reincarnation, please visit his site - Dr. Jim Tucker