It's never a good idea to go through an Advent without watching this version of A Christmas Carol.
To state the obvious, the story is a metaphor, using Christmas as the setting, in which a man is reborn in Christ by the mystical power of the Holy Spirit (as represented by the "spirits,") transforming his soul from a grouchy, self-centered drudge into a loving, generous, and joyful creature.
Many Christians, as I do, pray for some bit of that transformation and rebirth in our souls each Advent, as we remember and celebrate the birth of Christ.