The seminar on anxiety marks a turning point in the development of Lacan's thought from several perspectives. First, Lacan implicitly abandons his theory that the unconscious is structured like a language. He also abandons the endeavour to identify Freud's theory with his own. He develops some original new ideas about anxiety, some of which are of great interest, such as the connection between castration anxiety and narcissism; others, such as his denial of the existence of separation anxiety, are absurd. Lacan's main point of divergence from Freud, his rejection of the inner world, also emerges clearly in this seminar.