One night you as you close your eyes, you realize that the dream is more real than it should be. Are you sleeping?
You pinch yourself, and though you feel the pain, you do not wake up. Are you sleeping?
If this is a dream, then its yours, and you can be whatever you want. Are you sleeping?
If this is a nightmare, and its yours, fears may creep up on you. Are you sleeping?
If you meet other people, and its your dream, they are just projections of your subconscious... or are they sleeping?