The document summarizes Shakespeare's use of supernatural elements in his famous tragedies like Macbeth and Hamlet. It discusses how the Elizabethan era was highly superstitious and believed in supernatural creatures. It provides examples of the supernatural elements in Macbeth like the witches, Banquo's ghost, and prophetic apparitions that advanced the plot. For Hamlet, it discusses how the ghost of Hamlet's father created suspense and motivated the story's events. In conclusion, the supernatural elements increased the plot development and influenced characters' behaviors in the plays.