Each year, over one billion Christians eagerly anticipate the arrival of Santa Claus.  Children flock to malls to sit on his lap, and write long letters asking for gifts.  People alter their behavior out of fear they'll be spurned as "naughty," seeking to be "nice" to win Santa's approval. 

Gifts appear under Christmas trees without anyone remembering buying them.  Reindeer hoof beats are heard on roofs.  The Santa Claus legend has endured for centuries, the embodiment of Saint Nicholas and the very real spirit that transforms cities, homes and hearts every December.