Dickens uses Marley’s character to highlight the unfavourable effects of wealth. When Marley’s Ghost appears, Dickens writes that he was tied in chains. He details that they were made of “cash-boxes, keys, padlocks, ledgers , deeds, and heavy purses". This semantic field of money highlights how it is Marley’s misuse of wealth which has caused him to become trapped in purgatory. Through this Dickens presents a didactic lesson for readers, perhaps causing them to understand that wealth can cause the downfall of a person if it is not used properly.