The Function of the Manas Dharma Principle

The Buddhist doctrine of eradicating the view of self (satkāya-dṛṣṭi) and the doctrine of the manas are of immense benefit to Buddhism and to humanity; psychologists and sociologists can derive great benefit from them. If they understand the principle of the manas, or in other words the subconscious, they will be able to introspect, observe their own psychological phenomena, and thereby understand themselves, treat themselves correctly, and even change themselves, even though they do not understand the Buddha-dharma. Those engaged in corporate sales can also benefit, for by knowing themselves and knowing others, they can grasp the other party's psychology and guide it along its natural course, and sales will then succeed. All trades and professions can benefit from psychology—that is, from the doctrine of the subconscious manas. What is called "dialoguing with oneself" in the study of success is precisely the mind consciousness perfuming and guiding the manas, subduing the self. 

Problems of psychological disorder are entirely problems of the manas and the mind consciousness; schizophrenia is also a problem of the manas and the mind consciousness. When one dialogues with oneself and the two selves cannot carry the conversation through, a split occurs. The fundamental problem of schizophrenia is that the thoughts and views of the manas and the mind consciousness are not unified, that their values are inconsistent, and that the mind consciousness cannot persuade the manas to adapt to this society. Sometimes the mind consciousness itself does not even understand where the problem lies, and then it is even less able to effectively persuade and guide the manas. When one truly cannot fit in with this society and has walked into a blind alley and a dead end from which one cannot emerge, when one's thoughts and views are bound up by these things and cannot be opened up, the mind splits. If one can clarify the problems of the five aggregates (pañca-skandha) and of the manas and mind consciousness, and personally realize that all dharmas are empty, then no one will suffer from mental or psychological illnesses.