the overall story of a christmas carol is scrooge's journey of transformation from a lonely old miser to a kind-hearted and generous man
dickens shows the reader that regardless of our social situation, we all get to choose whether or not to show kindness to others
in a christmas carol, those who choose to show kindness are happy and fulfilled, while those who don't end up lonely and bitter
at the start of the novella, scrooge makes a conscious effort to reject acts of kindness: he turns down fred's invitation and the chance to donate to the charity collectors
through the visions of the 3 spirits, though, he begins to see that it is his own choices that have turned him into a miserable man, even if they have made him rich
he sees that after his death he will be forgotten and missed by no-one, just as jacob marley was
at the same time, he sees how other people who choose to live their lives with compassion are rewarded with happiness, even if they have less
fezziwig, the cratchits, fred and belle all do their best to be good to others and although they all have different social situations, they are all happy in their own ways
the ending of the novella provides scrooge's redemption as dickens shows the reader that it's never too late to change and to start making amends
scrooge learns that although he cannot change his choices in the past, he can control his actions in the present and future and choose to do good where he can
as a result of this lesson, scrooge is rewarded with the happiness he was lacking, through the company of family and friends