There are different models and theories of the psychological model of mind. But among these all, I preferred Freud's theory the most.
Sigmund Freud's theories of personality are the best known of all psychological theories and the most controversial as well. It was Freud who asserted that "reason does not rule behavior". It was his supposition that unconscious psychological forces were a strong force affecting individual thought and behavior. He stated that these forces originate in the emotions of childhood and continue to affect an individual throughout their lifetime. In his view, man was driven by primal instincts of the unconsciousness, and it was these instincts that lead to our greatest achievements, as well as to our worst side, like poverty, war, crime and mental illness. Freud postulated three levels of mind: the conscious mind, the preconscious mind, and the unconscious mind. He felt that our conscious mind only accounted for a small portion of the totality of the self, and the vast unconscious mind accounted for the rest (Bethel, 2004).
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