My brother says one cannot have the same dream over and over, in that if you think you have the same dream, it's the same 'theme' but the events are different. I agree with that.
It's not true. You can have the same dream often; I used to have the same dream of falling off of the jungle gym in Elementary school, and waking up before I hit the woodchips. The other is me getting shot by a certain girl I know in the left leg twice.