Storylines, or Beyond One Dimension

Narrative irons everything out flat, linear, and one-way. It is what we use and how we are able to make sense of multidimensional experience. Today's question is, how can we overcome the flat, linear, one-way nature of fiction? How do we capture the messy, paradoxical simultaneous life? And if the essence of narrative makes such a thing impossible, what form of art can achieve it?