The culture of a society is manifested through its
external, observable behaviour. But it is not always so simple as that. More often than
not the external behaviour is regulated by the thought - behaviour within. This makes the
cultural expression a complex phenomenon. Though the cultural aspects of a society may be
classified under material and non-material concerns, rigid categorization of the aspects
under one or the other is not easy, as the two overlap in different ways and you encounter
complex forms of cultural expressions!.