Émile Durkheim saw the symbolic boundary between sacred and profane as the most profound of all social facts, and the one from which lesser symbolic boundaries were derived.
Rituals - secular or religious - were for Durkheim the means by which groups maintained their symbolic/moral boundaries.
Mary Douglas has subsequently emphasised the role of symbolic boundaries in organising experience, private and public, even in a secular society; while other neo-Durkheimians highlight the role of
deviancy as one of revealing and making plain the symbolic boundaries that uphold moral order, and of providing an opportunity for their
communal reinforcement. As Durkheim himself put it, "Crime brings together upright consciences and concentrates them...to talk of the event and wax indignant in common", thereby reaffirming the collective barriers that have been breached. ==Transgressing boundaries==