So, again, I dare you to show it to me this thing called “the mind” so we can all see it, define it, quantify it, study it, and treat it. Thus we can properly define and seek to cure this thing we call “mental” illness.
This is not to say that we can’t tell a lot about someone’s “mind”, but this we can do only indirectly. The contents of one’s thoughts, ideas, expressions, choices, actions, etc. tell us about the “mind” but they are not “the mind”. To direct some type of therapy to any one “thing” that is a “mind” is not like treating a lung or a liver or a pancreas.