The quote is "Are these the shadows of the things that Will be, or are they shadows of the things that May be only?" - Ebenezer Scrooge
This quote from Stave 4 of "A Christmas Carol" is important because it reflects Scrooge's growing awareness and fear of the potential consequences of his actions. In this stave, the Ghost of Christmas Yet to Come (or Future) shows Scrooge a vision of his own death and the lack of grief or remorse from those around him.
Scrooge is confronted with the idea that the future is not set in stone and that his current path may lead to a lonely and unfulfilling end. This realization is crucial in motivating Scrooge to change his ways and seek redemption.