Her opening soliloquy is very dramatic as it reveals her evil personality and contrasts it to the personality of what a stereotypical Shakespearian women should be. She says things like "unsex me know" because women had no power or influence in Shakespearian times. Lady Macbeth says she would have murdered king Duncan if "he"d not resembled my father as he slept," but she does smear blood on the guards to make them appear guilty and she covers up Macbeth's involvement in the murder.
In act one scene seven Macbeth says to lady Macbeth "We will proceed no further in this business" meaning that he has decided not to kill the king but lady Macbeth manages to convince Macbeth by questioning his love when she says "from this time such I account thy love" she calls him a coward and questions his courage; "wouldst thou have that which thou esteem'st the ornament of life and live a coward in thine own esteem letting `I dare not` wait upon `I would` like the poor cat I" the adage?" this I also an example of animal imagery. Macbeth says that he doesn't want to kill Duncan and after Lady Macbeth speaks he agrees to do it so, would Macbeth have done the murder if he had not been convinced? Is Macbeth's downfall all because of Lady Macbeth's driving ambition?.
In Shakespearian times the people would have believed in witches and the supernatural. The opening scene must have scared the audience, as the actors would have been chanting spells; "fair is foul, and foul is fair; hover through the fog and filthy air.".
The witches appearance and characteristics give a dramatic because they are evil and grotesque, the imagery they use is dramatic and ugly such as" pilot's thumbs" which are parts of corpses used in spells and magic and when they say "maw and gulf" which is stomach and guts. .
The witches played no physical part in the murder of Duncan but if they had not told Macbeth that he would be king he may not have murdered Duncan but this may not be the case.