Shakespeare expresses wonderful imagery of blood in Lady Macbeth when she says, "Make thick my blood; stop the access and passage to remorse." During this time, innocent, wholesome people were thought to have thin blood. However, poison is what made a person's blood thick. As a result, Lady Macbeth wanted her blood thick with poison so that she could kill King Duncan without feeling any remorse for committing such an act. Lady Macbeth wanted to trap any feeling of guild and shame among her thick, poisoned blood. She also explains to Macbeth that her hands are the same color as his covered in blood, but she is okay with it. However, she does not want to "wear a heart so white," like him. Meaning, she does not want a bloodless, lifeless heart and be a coward like Macbeth.