people only think of mental illnesses like this as 'bad' because they're afraid of what they don't understand. Nobody truely understands how the brain works. I like to think that some things - such as the affect of drugs, hallucinations, ect - may actually be an improvement. Maybe they help us to see and understand things that a normal brain couldnt? Im not saying that this is the case for Schizophrenia and MPD, but who really knows?