Victor Witter Turner’s scientific contributions

... He used the concept of " communitas " to refer to a specific situation or rare incidence in social life when people forget their social structure and identity and act beyond the structure (i.e. transitional states experienced during out-of-the-ordinary situations such as rites de passage or pilgrimages) (Turner, 1969, 97). ...

Reference:

From Science through Art to Literary and Discursive Interpretation: Rethinking Anthropology from Its Classical to Contemporary Trajectory