Introverts see the world in terms of how it affects them
Extroverts are more concerned with their impact upon the world
There is also a balance between conscious and unconscious emphases on these qualities
If you take an extravert, you will find his/her unconscious has an introverted quality because all the extraverted qualities are played out in his consciousness and the introverted are left in the unconscious.
Introverts are more interested in their own thoughts and feelings; their inner world
Sensation and intuition are ways of gathering information, as distinct forms of making decisions.
Sensation refers to a focus on direct sense experience, perception of details, and concrete facts : what one can touch, see and smell. Sensing types tend to respond to the immediate situation and deal effectively and efficiently with all sorts of crises and emergencies. They generally work better with tools and materials than other types do.
Jung's theory of a personal unconscious is quite similar to Freuds idea of the unconscious. However, Jung considered the personal unconscious to be a "more or less superficial layer of the unconscious." Within the personal unconscious are what he called "feeling-toned complexes." He said that "they constitute the personal and private side of psychic life." 3 These are feelings and perceptions organized around significant persons or events in the person's life.
Jung believed that there was a deeper and more significant layer of the unconscious, which he called the collective unconscious, with what he identified as archetypes
Archetypes, he believed were innate, unconscious, and generally universal. Jung's collective unconscious has been described as a "storehouse of latent memory traces inherited from man's ancestral past, a past that includes not only the racial history of man as a separate species but his pre-human or animal ancestry as well.“
There are some experiences that show the effects of the collective unconscious more clearly than others: The experiences of love at first sight, of deja vu (the feeling that you've been here before), and the immediate recognition of certain symbols and the meanings of certain myths, could all be understood as the sudden union of our outer reality and the inner reality of the collective unconscious.
Examples – musicians, spiritual experiences of mystics
The contents of the collective unconscious are called archetypes . Jung also called them dominants, images, mythological or primordial images, and a few other names, but archetypes seems to have won out over these. An archetype is an unlearned tendency to experience things in a certain way.
The persona is based on your superior function in life (the function that will best serve one in meeting the world's demands).
When your persona is forced upon you, as when your parents push you into academic achievement, forcing you to build a thinking-based persona, whereas your natural (God-given) superior function was the feeling function or intuitive function, etc.