Based on the mental model dealt in the course of Personality Development, we will discuss how inner psychic world is evolve from infancy, childhood, adolescence to adulthood through active interaction with environment. From modern psychoanalytic perspectives, I pick up topics such as family, narcissism, identity, PTSD, and object loss. Using materials from drama, novel, non-fiction, and guest lectures' talk, this course aims at students' deep understanding of mental environment.