refer to act 2 scene 2 and comment on how Shakespeare makes the events that take place so deeply disturbing and dark

Macbeth enters, still carrying the bloody daggers with which he killed Duncan. He is deeply shaken: he feels he has sinned against God and can no longer say "Amen". L. Macbeth is shaken too but tries to pretend she has a handle on things. Macbeth has Duncan's blood dripping everywhere and begins to lament how his world has become dark: he cries that his conscience will never let him sleep again.