The Diagnostic and Statistical Manual of Mental Disorders is a huge volume of symptoms of mental illnesses organized into many hundreds of Diagnoses. We see it more as a collection of observations of the creative ways people in low states of mind come up with to help themselves feel better or quiet their thinking. The Three Principles explain that there is only one underlying mental illness — innocent misunderstanding of the power to think. And there is only one cure — understanding our spiritual power to think and experience our thinking as real. When people see that, they recognize their freedom to change, to heed their wisdom when it comes to mind, and to allow less constructive thoughts to pass.