Guilt in a dream means that it’s best to be cautious of your actions and judgments while through sleeping. It usually represents qualities or behaviors like judgment or criticism that one is unaware of during the day or waking hours such as acting on orders to participate in a war to destroy civilian cities and homes but find yourself criticizing, feeling ashamed, and guilty when sleeping with your unconscious mind letting your know what is right and terribly wrong.
Guilty dreams can mean that there is a disturbing incident or situation that the dreamer has forgotten or done from their recollection. It can also mean that the person might be thinking about something they did not want to take part in once they have realized the mistake of their actions that will forever haunt them.