"Seeing is Believing" is a score composed by Alan Silvestri that plays in the 2004 film The Polar Express. It is also featured on the film's official soundtrack as the seventh track.
The first half plays when Hero Boy talks with the Hobo on top of the observation car and then tries waking himself up after the Hobo hints the events of him on the train are just a dream. The other half is from when Santa Claus circles the North Pole Square in his sleigh and flies away to deliver the presents.
While Santa is circling the Square, the songs "Jingle Bells", "Deck the Halls", and "Jolly Old Saint Nicholas" can be heard as instrumentals. The score finishes with an instrumental of "Believe."