The dream follows the general up is good, down not so good, rule. However, as an additional guide: to fall upstairs augurs well for love affairs, and to fall - as opposed to stumble--downstairs is a warning to be less controversial in your expressed views. If you dreamed of sweeping To dream that you are sweeping, or scrubbing the stairs, you are likely to have an unexpected improvement in your lifestyle.
The top floor in a house often represents your spirituality, the spiritual aspects of your life, or your higher wisdom.