In this passage of the play, Lady Macbeth plots the murder of King Duncan, who is coming to her home to celebrate his victory in the war, and to honour Macbeth's role in that victory. Moments before hearing of Duncan's imminent arrival, she has learned that Macbeth has met with three witches, who have predicted that he will one day be king.
At the beginning of the passage Lady Macbeth delivers her first soliloquy. A soliloquy is a form of speech in which the character is speaking to him or herself, with no intended audience, and thus we can trust that the words they speak are a truthful reflection of their thoughts. The soliloquy begins with the image of the raven, which is a scavenger bird and often a symbol of death. Lady Macbeth references it here to imply that Duncan's death is imminent.
Lady Macbeth uses in her soliloquy lots of metaphorical language. She asks the spirits to "fill (her) from the crown...
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