If you had a dream of a stranger, the dream signifies a part of yourself that is repressed and hidden. Alternatively, it might symbolize helper dream, which is offering you insights and advices. Dreaming a stranger represents acknowledgement and acceptance of the repressed aspect of you. The dream may also try to show you the truth about someone you know, this person who you know is not who you thought they were. It may mean that there are repressed memories, fears or emotions that you are not confronting. And the experienced memories can be recalled in this way to get lessons for your future mistakes.