When you dream tall means: In your dream, the symbol tall represents being superior to others. This image can either be interpreted as a positive or negative sign depending on the context. Your insecurity or shortcomings might be reflected by a tall person. A tall man can be a sign of unconscious masculine qualities that must be developed within. Both males and females may wish to see it. A tall man is a dream for many women. This could be a sign of their inner masculinity that requires development.
(in Dream Dictionary)