Based on an outline of a participant's course in a writing workshop - which is held weekly in São Pedro Psychiatric Hospital, located in Porto Alegre - the present article questions, from the view of Freud's and Lacan's psychoanalysis, the existing relations between negation, aggressiveness and the symbolic. This work's horizon is to reflect on the production of lack as one of the operators of the making in workshops with subjects that encountered important impasses in their structuring.
psychoanalysis; writing workshop; negation; aggressiveness; symbolic