They're trying to tell us that we're not right so we have to buy their products. The number one cause of mental illness is not knowing who you are and you can't know who you are if you don't spend time honoring yourself and living in the present.
In the history of the treatment of depression there was the dunking stool purging of the bowels of black bile hoses attempts to shock the patient. All of these represent hatred or aggression towards what depression represents in the patient.