In the first four acts of Macbeth, Lady Macbeth is vicious, overly ambitious, without conscience, and willing to do whatever it takes to get what she wants. In this case, she wants to become Queen of Scotland. "Whiles I stood rapt in the/ wonder of it, came missives from the king, who all-/ hailed me, Thane of Cawdor'; by which title, before,/ these weird sisters saluted me, and referred me to the/ coming on of time, with Hail, King that shalt be!'/ This have I thought good to deliver thee, my dearest/ partner of greatness; that thou mightest not lose the/ dues of rejoicing, by being ignorant of what greatness/ is promised thee. " (I v, 5-13).
Because Lady Macbeth is a woman, she does not have the strength in her female frame, either in heart, body nor mind to carry out the deed of killing the King. Therefore, she calls upon the aid of the supernatural to give her male powers, so that she may have the gall to go through with the plan to murder the King, and allow Macbeth to obtain the throne. "The raven himself is hoarse/ That croaks the fatal entrance of Duncan/ 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 gall, you murdering ministers,/ Wherever in your sightless substances/ You wait on natures's mischief! Come thick night,/ and pall thee in