There seem to be two types of narrative when stories are told of the human condition.
First, reductionist narratives oversimplify humans into formulas that, though they may be variable, move a sequence of events through a logical and inevitable progression towards an end.
Second, emergent narratives rise untraceably out of seemingly over-complex ecosystems of individuals and events. Direct cause and effect are denied their traditional role as the underpinnings of narrative. Instead, the narrative floats just beyond the conscious of those who hear it, a poem-like prism as useful and inscrutable as the grains of sand in a glass shard.