Doppelganger
 From the German meaning 'double walker', a ghostly double or counterpart of a living person.

The belief that each person has an identical 'twin' somewhere, though they are unrelated, is a very ancient one. Sometimes the Doppelgänger is the direct opposite personality of the real person; a very nice person will have an evil Doppelgänger and vice-versa. Legend says that if the two should meet, they will both die.

Other accounts describe the Doppelgänger as the soul embodied, sometimes a astral projection or aura, the double most often presenting itself as a warning. According to an old belief, anyone who wants to know who will pass away in the coming year has only to stand vigil near a church door on April 24, the eve of the feast of St. Mark. At midnight, the airy doubles of all who will die file in a solemn processional into the church. If the watcher is unlucky enough to see his/her own image there, he/she knows his/her own time is not far off.