6. Freud-Instincts

6.Freud claims that the sexual urge, which is destined to exercise a decisive influence on our life, gradually develops out of successive contributions from a number of component instincts, which represent particular erotogenic zones {Outline of Psychoanalysis}. What are these "component instincts" and how, according to Freud, does the developmental process make them an important influence on aspects of our lives that we do not ordinarily consciously think of as "sexual"?