Show with close reference to the text how Shakespeare effectively uses images of darkness and evil in macbeth

In Macbeth, Shakespeare frequently uses images suggesting darkness and evil. From the environment to the concoctions the witches use the play is loaded with images of darkness and evil. Blood is everywhere in Macbeth, beginning in the opening battle between the Scots and Norwegian invaders, which is described in harrowing terms by the wounded captain in Act I Scene II: "except they meant to bathe in reeking wounds or memorise another Golgotha" Once Macbeth and …

…Cawdor" to make us trust them, then they can deceive us in important matters "thou shalt be king hereafter". The witches basically entwine him into believing that killing Duncan is the right thing to do and he can get out of the viscous circle he has got himself into. So, as you see Macbeth is brimming with very powerful and strong images suggesting darkness and evil. They emphasis the supernatural and magical side of Macbeth.