It’s an approach towards understanding, knowledge, life, being, art, technology, culture, sociology, philosophy, politics and history that is REFERENTIAL – in that it often refers to and often copies other things in order to understand itself. New expressions of identity and being are actually new iterations (versions) of previous expressions of popular culture. It is therefore possible to understand postmodernism as a complicated and fragmentary set of inter-relationships, a practice of re-imagining, pastiche, bricolage and self-referentiality. 

The difference between a pastiche and parody: A pastiche is a work of art, drama, literature, music, or architecture that imitates the work of a previous artist, a parody is a work or performance that imitates another work or performance with ridicule or irony