Has to do with the mind being cleared and stirred into action.
Also, click to see other meanings of this dream.
Fan Blowing air means empty words are being spoken
Fan 1. Pleasant news or activities, especially regarding relationships. 2. A need to “cool off,” likely in a relationship. 3. An intensiﬁcation of emotions, likely in a relationship (as in “fanning the ﬂames”).
Fan A pretty fan reveals vanity and a desire for frivolity. It also predicts good news for the dreamer. An old fan, rivalry.
Fan A dream of pride (Gypsy). A Japanese emblem of authority, power, royalty.