Sister City is a project about contemporary identity and internal evolution. The piece approaches this subject using a pair of narratives to represent an individual. These narratives are set in two different worlds located in opposing universes. Both worlds share several attributes, these being the existence of two cities and an older and a younger sister with an estranged relationship. These separate worlds are different representations of the same mind, similar to the concept of the conscious and unconscious realms of the human brain. The cities within these worlds symbolize two divergent personas within this mind. The sisters themselves serve as vectors of interaction between the personas. Through this structure, a continuous process of mental division and conflict emerges, representative of the psychological evolution that occurs throughout a lifetime.