macbeth appearance vs reality

• "stars hide your fires, let no light see my black and deep desires"
• the contrast between the ominous connotations associated with "black" and the bright imagery linked to "light" highlights Macbeths dichotomous character.
• Macbeth wants to shroud his sinister motives in metaphorical darkness, as if his true intentions come to light" this would obstruct him from acquiring his illegitimate title of king.
• the rhyme between "desires" and "fires" in this couplet has a resemblance to the enchanting spell casting technique employed by the witches, who utilise rhyming couplets to accentuate their deception.
• this emphasises Macbeths descent into a shadow and malevolent trajectory as he is a king for his duplicitous intentions to be revealed so he can fulfil his ambitious ego-centric desires.