A Christmas carol is a classic story by Charles Dickens that follows the life of a bitter old man named Ebenezer Scrooge. Scrooge is visited by three ghosts - the ghost of Christmas past, present, and future - who show him the consequences of his selfish and greedy ways. With their guidance, Scrooge realizes the true meaning of Christmas and becomes a changed man. A Christmas carol is a beautiful and touching tale that teaches us the value of kindness, generosity, and forgiveness.