Because of the story’s allegorical nature, many characters and events are symbolic:

Marley's chains represent spiritual burdens he "forged" in his own life: that is, his callousness towards other human beings in favor of money or power. Whereas normal chains are forged from metal, Marley’s are constructed from what he valued in life—versions of material wealth. Dickens uses this image to suggest that actions in life may have inescapable consequences even in death.

The Ghost of Christmas Past symbolizes the experiences and memories that have made him into the callous person he is today. The spirit’s glowing head suggests the location of the memories Scrooge holds.

 

Scrooge dislikes Christmas and refuses a dinner invitation from his nephew Fred. He turns away two men who seek a donation from him, and only grudgingly allows his overworked, underpaid clerk, Bob Cratchit, Christmas Day off with pay to conform to the social custom.

The Ghost of Christmas Past, takes Scrooge to Christmas scenes of Scrooge's boyhood, reminding him of a time when he was more innocent. The scenes reveal Scrooge's lonely childhood at boarding school, his relationship with his beloved sister Fan and his  neglected fiancée Belle

The Ghost of Christmas Present, takes Scrooge to see people preparing for Christmas. Scrooge and the ghost also visit Fred's Christmas party. A major part of this stave is taken up with Bob Cratchit's family feast and introduces his youngest son, Tiny Tim, a happy boy who is seriously ill.

The Ghost of Christmas Yet to Come, shows Scrooge a Christmas Day in the future. T The ghost then allows Scrooge to see a neglected grave, with a tombstone bearing Scrooge's name. Sobbing, Scrooge pledges to change his ways.

Scrooge awakens on Christmas morning a changed man. He makes a large donation to the charity, sends a large turkey to the Cratchit home for Christmas dinner, and spends the afternoon with Fred's family. From then on Scrooge treats everyone with kindness, generosity and compassion, embodying the spirit of Christmas.

The main character of the story.

The business partner of Ebenezer Scrooge.

The nephew of Ebenezer Scrooge 

Scrooge's clerk, a kind, mild, and very poor man with a large family.

-The son of Bob Cratchit, Scrooge’s employee. Tiny Tim is crippled.

- The Ghost of Christmas past takes Scrooge back to relive old memories, showing him what he has lost.

- He shows Scrooge the joys and the hardships of others.

Ghost of Christmas Yet to Come
- A frightening figure who shows Scrooge the future he will face if he doesn't change.

3. The importance of making choices 
Making correct choices is important, difficult as it may be. But do remember no matter what kind of choices you are going to make, you should be responsible for yourself, and make sure that it will make you happy for the rest of your life.