What those "who think how we should think" and if any varies in the slightest, get treatment that makes the Inquisition look like Club Med.
Portmanteau of 'psycho-' (mind) & 'orthodoxy' (right opinion), actually a continuation of the Mental Hygiene arm of Eugenics and a possible prophecy of Orwell's 1984 & other dystopia
When you need to see a psychiatrist
, you need to be a nice circus lapdog and keep her/him from thinking (if they do) that you're too deviant
from their (&/or superiors) Psychodoxy since they have God-like power to make your life (more) miserable, with no appeal, those often make things worse