Abstract
The project to invite professionals working among ageing people during the COVID-19 epidemic to testify about their experiences was born in March 2020. This article retraces the motivations behind this call to “look back”, the questions that were raised during its implementation, the ethical and methodological reflections that structured the evolving framework for the collection of testimonies, and finally the transition to the formation of a multi-professional collective. Through these different stages, the authors underline the importance given to the process dimension in the construction of this operation and to its psychic functions of symbolisation and change in the setting of the trauma experienced individually and collectively in this unprecedented period.