Lady Macbeth can be said to be one of Shakespeare's most famous and frightening female characters. She fulfills her role among the nobility and is well respected, like Macbeth. She is loving, yet very determined that her husband will be king. At the beginning of the play, when she is first seen, she is already plotting the murder of Duncan, showing more strength, ruthlessness, and ambition than Macbeth. She lusts after power and position and then pressures her husband into killing Duncan. Upon receiving the letter with the witches' prophecies from her husband, she begins to think and knowing that Macbeth lacks the courage for something like this, she calls upon the forces of evil to help her do what must be done. Her immediate thoughts might make people believe she is irreligiously cold but she only calls upon the spirits to help her, otherwise her conscience would not let her act.
The raven himself is hoarse
Under my battlements. Come, you spirits
That tend on mortal thoughts, unsex me here,
And fill me, from the crown to the toe, top-full
Of direst cruelty! Make thick my blood;
Stop up the access and passage to remorse,
That no compunctious visitings of nature
Shake my fell purpose nor keep peace between
The effect and it! Come to my woman's breasts
And take my milk for fall, you murd'ring ministers,
Wherever in your sightless substances
You wait on nature's mischief! Come, thick night,
And pall thee in the dunnest smoke of hell,
That my keen knife see not the wound it makes,
Nor heaven peep through the blanket of the dark
To cry "Hold, hold!" (lines 38-54/act 1, scene 5)
She knows what must be done and will do anything to achieve her goal. She wishes that she were not a woman so that she could do it herself. I think there is a connection between gender and power and here, that is true. Many people don't view women and power together as one but here, Shakespeare shows Lady Macbeth, along with the witches,