-blood is a symbol of guilt: " Out, damned spot, out, I say! One. Two " psychological hell,
-Lady MB: 'whats done cannot be undone' trying to be reassuring and not look towards the past, shows little remorse for duncan
-banquos ghost is symbol (for mb)
-macbeth does murder sleep: can never sleep (restlessness of the mind) again, deceitful thing to do-divine right of kings
-'blood will have blood' MBfeels trapped in the inevitability of this violence. bad actions lead to bad consequences/actions
'full of scorpions in my mind' animal imagery, stinging