Intergenerational traumas resulting from Canadian colonialism are now a recognized psychological issue among Canada’s First Nations. This phenomenon is giving way to a redefinition of the role of psychosocial services in the country’s various Indigenous communities. This is the perspective from which this practice narrative presents an innovative social intervention experience carried out in two phases (September and November 2020) with members of the Cree community of Nemaska in Eeyou Estchee. In different traditional activities (canoe, sharing circles, sweat lodge) led by the local psychosocial team, emotional sharing was used as a tool for healing. The different emotional sharing activities helped participants to not only become aware of the psychological impacts of colonisation but to reappropriate their history and use it to drive concrete action to break the chain of transmission of intergenerational trauma.