I think you are referring to Ignorance and Want, the twins introduced to Scrooge by the Ghost of Christmas Present.
This refers to the Ghost of Christmas Yet to Come . Scrooge is unaware of whom the people in the scenes refer to but is starting to guess it might me him and wants the ghost to tell him so
The main character in "A Christmas Carol" is Ebenezer Scrooge, a bitter and miserly old man who undergoes a transformation after being visited by the ghosts of Christmas Past, Present, and Yet to Come.
Scrooge cannot cover the Ghost of Christmas Past with the metal cover because the ghost is intangible and not physically present. Since the ghost is a spirit, the physical cover would pass through it without effect.
Scrooge believes that Marley's ghost is visiting him as a result of something he ate or drank. He dismisses the idea that Marley's ghost is real, attributing it to his own indigestion or an undigested bit of beef.
The Ghost of Christmas Present is a stranger to Scrooge because he represents the present moment, which Scrooge has been disconnected from due to his focus on the past and future. The ghost's role is to show Scrooge what he is missing by ignoring the joy and goodwill around him in the present.
Fort the ghost of Christmas past he disbelieved and resented the appetition despite feeling a hint of remorse for his actions. The ghost of Christmas present sees Scrooge starting to see what the true spirit of Christmas is. Scrooge starts to understand the impact he had on the lives of the Cratchit family and hears and sees what people think of him. Finally the ghost of Christmas yet to come, the most feared of all. Scrooge is scared not only of the ghost and its message but of the dark uncertainty that the spirit briings
Marley told Scrooge that three spirits would visit him: the Ghost of Christmas Past, the Ghost of Christmas Present, and the Ghost of Christmas Yet to Come. These spirits would help Scrooge see the error of his ways and lead him to redemption.
It claims the apparition is the result of some undercooked potato or some uncooked meat
"You were always a good friend to me," said Scrooge. "Thank'ee!" "You will be haunted," resumed the Ghost, "by Three Spirits." Scrooge's countenance fell almost as low as the Ghost's had done. "Is that the chance and hope you mentioned, Jacob?" he demanded, in a faltering voice. "It is." "I-I think I'd rather not," said Scrooge. "Without their visits," said the Ghost, "you cannot hope to shun the path I tread. Expect the first to-morrow, when the bell tolls One." "Couldn't I take 'em all at once, and have it over, Jacob?" hinted Scrooge.
That the ghosts would not/may not arrive, however, the ghost of Christmas past lights up his room almost immediately
The ghost repeats Scrooge's own words to show him the impact of his harsh and unkind behavior on others. By echoing his own words back to him, the ghost helps Scrooge realize the consequences of his actions and the need for change. It prompts self-reflection and serves as a powerful lesson for Scrooge.