Abstract
Sociographical research has concentrated for a long time on Sunday Mass attendance. Without decrying the value to religious sociology of these many enquiries, one cannot but agree that qualitative research would be of great interest.
The Center for Socio-Religious Studies, Lille, therefore set out in 1962 to study the problem of the significance of the Mass. The aim is to enquire into the different degrees possible in participation in the Mass, the meaning attributed to it by the faithful, and the motives which induce them to practise
The author sums up the experience of two years of groping, of trials and set-backs, due mainly to methodological difficulties.