Never quite understood the whole meaning of the doppelganger thing…so here’s a cool and creepy definition from The Book of Myths and Secrets:
Doppelganger is the German word for one’s “double,” corresponding to the Egyptian ka, or a reflection-soul. Sometimes the afterbirth was said to be an unformed twin of the newborn baby; by magic it might assume the living twin’s shape and follow him through life. Sometimes this was thought to be the Doppelganger seen in one’s reflection.
Photography: Doppelganger by Feinga87