Realism tries to represent the surface of existence as it is experienced. Therefore, the dialogue has to sound close to the way folks speak; the representation of the physical world has to match the photographable, knowable world. People have to act in ways that are usual or, if not usual, explainable by established ideas. Socioeconomic strata are faithfully represented, often with what readers feel is fidelity to economic and psychological conditions. Modernist literature holds that reality lies in the head, in the imagined or felt world; the surface is less important than the way life is understood. That understanding may not correspond to what one can photograph and what has been traditionally passed down "reality." It tries to go deeper into murk depths of the unconscious, the latent (not evident) patterns of perception and understanding. To the realist or social realist Raskolnikov killing a pawnbroker is an act of violence upon a stranger and possibly a blow against a repressive capitalist system; to the modernist it is a murder against the killer's mother and a symbolic acting out of repressed incest..