Yes, the non-symmetric light represents the life and loneliness of Harry. The other three lights represent his parents and friends, wanting to be there for him but just out of reach. Mounting the light on brick represents the wall that Harry must pass through on his way to greatness and the unanswered. If one ponders the writings of Plato, they will see the histrionics of life's echos of the unknown...
How was that for a BS answer. Everyone? Anyone?...