Existential Vacuum — The psychological condition in which a person doubts that life has any meaning. This new neurosis is characterized by loss of interest and lack of initiative. According to Viktor Frankl, the existential vacuum is apparently a concomitant of industrialization. When neither instinct nor social tradition direct man toward what he ought to do, soon he will not even know what he wants to do, and the existential vacuum results.

Because of social pressure, individualism is rejected by most people in favor of conformity. Thus the individual relies mainly upon the actions of others and neglects the meaning of his own personal life. Hence he sees his own life as meaningless and falls into the “existential vacuum” feeling inner void. Progressive automation causes increasing alcoholism, juvenile delinquency, and suicide. 
— Victor Frankl