A border crossing usually, perhaps always, calls forth an occasion for story or narration. The proliferation of narratives of border crossing connects individual experiences of the border to the larger historical narratives of border formation. Every border crossing narrative can thus be apprehended as a performative renegotiation of the border.
Indeed, every minimal narrative may be conceived of as a border-crossing narrative, with the protagonist standing for the border crosser, narratives situations standing for different territories, the antagonist standing for the border or for associated border agents, the helper standing for a variety of entities which may include the border crosser (who uses her resources to cross) or the borders themselves (who allow the border crosser to cross).
From a border poetics point of view border figures (walls, bridges, etc) often regulates the border-crossing narrative.