Dreaming of autumn is a sign of upcoming negative change in life as per dream interpretation and meaning. Dream of autumn leaves means death or saying goodbye forever to someone in your life.
Dreaming of autumn and you are happy means you can expect solution to a nagging problem. It also means going away of something that was disturbing you it can be person or a problem.
Dream of autumn and you are unhappy means loss. It can be loss of life or things. It also means disturbance in your present life due to sudden exit of a person or thing.