Which, by the way, is all scientifically unsubstantiated bullshit this statement is too bold to continue any reasonable discussion. ^_^

Freud was extended and popularized the theory of unconscious mental dynamics which need not to be explained to any educated person. It covers almost anything from cognitive tasks and linguistics to somatic processes.

Secondly, he developed theory of therapist-patient relationships which was extended after him to anything from propaganda and advertisements to NLP and other influental techniques.

Of course, unconsciousness was known since Upanishads, but Freud was popularisator.