Both lady Macbeth comment on the water cleaning their involvement in deed?

Lady Macbeths comments of the water cleaning their involvement in the deed are symbolic and metaphorical. She feels guilty and haunted by the murder of king Duncan, and sees the blood on her hands as a stain that cannot be washed away.

In Act V scene 1, Lady Macbeth sleepwalks and tries to wash her hands, saying "Out damned spot! Out I say!" She is trying to cleanse herself both physically and mentally from the guilt of the murder, but she is unable to do so.

The water imagery is suggestive of the power of guilt to haunt and torment the perpetrator of a crime . Lady Macbeth is consumed by her guilt and feels that she can never escape the consequences of her actions, even though she has tried to wash away the physical evidence.