This short paper deals with the difficult articulation of a diverse cultural heritage within a society and the democratic forms of assuring its social cohesion. Special attention is paid to the links between immaterial culture and the environment that transforms it into a structural element of social cohesion. Culture is seen as a ‘mould' which shapes a shared behaviour, and democracy can be conceived as a system made up of elements of a cultural nature that go as far as implying safeguarding pluralism, respect and tolerance of all kinds of difference. This is the case with those countries where the structures of the modern state are in the process of disappearing and being redefined in new forms, whose essential feature is acceptance of cultural diversity. If we conceive democracy in terms of heritage and in terms of non-exclusion of cultures dominated by a dominant culture, then it results that Mexico has not experienced true democracy - either in the past or nowadays.