What's Gothic About Act One?

There are lots of Gothic elements in Act One of Shakespeare's Macbeth.

The Weird Sisters portray many such elements, such as the power of three, the fear of the unknown and the warping of human nature. They are uncaring as to human suffering and show no remorse, which are two major elements of human nature that separate us from being animals.  They embody the supernatural gothic element.

Lady Macbeth displays a twisted version of human nature and not one that is expected within a woman of her standing.  She is calculating, cold and ambitious, to the point where she plots the most high risk murder she possibly could in order to get money and power.  Her scathing attitude towards her husband and his human kindness creates a sense of fear within her, as he is not as constant and unchanging as she is due to his emotion.  She sees feelings as weaknesses and so is terrified that Macbeth's softer heart could ruin them both.  She emasculates him, possibly so as to keep herself fully in charge.  She has understood that she cannot be king of everywhere and so becomes ruler within her own territory.  There is an attitude within her that makes the reader think that perhaps if she had been born a man it would not only have been Scotland that would fall to her. (In my opinion, Lady Macbeth could have been Queen of the World had she just been born a bloke. King of the World. Whatever.)  She is also two-faced, and can act the picture of sweetness and light when required of her (when she is approached by a messenger in this act and when she pretends to swoon in the following act) but is actually the opposite.  This is Gothic in nature because this type of woman is unknown in the context of the story.

Reading Journal - Act One

Witches - Rhyming almost constantly, gives an air of incantation. Links in to the supernatural gothic element.  Prophesies.
War setting:

• Uncaring of individuals;
• side of human nature not often seen;
• sense of justice overly strong; 
• massacre - lots of death;
• glorification of murder.

Witches continue:

• Total lack of remorse.  Qualities that make us human removed but in a very human form.  Creepy, supernatural element.
• Alike to the Fates in Greek mythology. Continued about their business deciding the destiny of people without sympathy or regret.  Singular eye could be an element added to a live production of Macbeth.

1.5
Lady Macbeth

• Meglomaniac
• Female equivalent of husband.
• Warrior woman, references allowing Duncan under her "battlements".
• Idea that, had she not been born a woman, she would have made a better fighter even than husband, but because is stuck in a woman's body she is limited to her station.
• Scathing of human emotion. More machine than being?  Scathing even of husband's emotion. Only emotion that passes between them is lust (in Patrick Stewart version)
• Emasculates husband so that she has control.
• "Spirits in thine ear" - could reference either Weird Sisters or her own "powers".
• Symbology - Golden Rounds - Crown? Money?
• Two-faced.
• Turned on by idea of murder?

A thought:  Could war be considered a Gothic element?  War creates hot-headed and murdering men enhances the barbaric element of the human nature.  Strong fearful feeling, masculine.  Blurred lines of reality.  Potential for psychological issues.