Object Relations Theory: the idea that the ego-self exists only in relation to other objects, which may be external or internal. The internal objects are internalized versions of external objects, primarily formed from early interactions with the parents. There are three fundamental "affects" that can exist between the self and the other - attachment, frustration, and rejection. These affects are universal emotional states that are major building blocks of the personality.
As a pioneer of object relations theory, Winnicot’s position was that the child looking at the mother should see not the mother’s face, but herself. The child’s particular blind spot is an inability to have a realistic notion of the mother as an other subjectivity. The child as an adult continues to share this blind spot