Imagery and patterns in macbeth.?

Question:I need a pattern, device, or form of imagery in macbeth.
im aware that there are many like blood, animals, clothing, supernatural elements but i need to make a conclusion about w/e pattern i choose and prove a point
like ____ is important because it_______
thats sorta thing.
i just can't think of anything, and don't know where to start.
it would be awesome if u could help me out! :)

Best Answer - Chosen by Asker: I need a pattern, device, or form of imagery in macbeth.
im aware that there are many like blood, animals, clothing, supernatural elements but i need to make a conclusion about w/e pattern i choose and prove a point
like ____ is important because it_______
thats sorta thing.
i just can't think of anything, and don't know where to start.
it would be awesome if u could help me out! :)

The "power of suggestion" is important because if not for the witches and his wife, Macbeth would have silenced his ambition and probably would have remained Duncan's most loyal supporter.