When you see a lunatic person in your dream, then such dream symbolizes the unknown aspects of your personality. Perhaps you are surprised by the features you have found in yourself. Alternatively, the dream may show how neglected you are feeling around those in your waking life. Perhaps nobody understands your opinions and views about the life in general. The dream about lunatic could also indicate the person in your life, that is very important to you and has huge significance to you, but there is a gap between you two.
Read more about dreaming of Lunatic in other dream meanings interpretations.