An important aspect of Hannah's work is its temporary nature. Her ephemeral installations seek to honour the passing of time and yield to the fluidity of a work coming into being and disappearing. This concept is closely linked to the Japanese philosophy and aesthetic Wabi Sabi and the scientific understanding of entropy. Wabi Sabi is the acceptance of growth, decay and death as an integral part of living. In all things it acknowledges the march of time and the transient nature of our lives and of the material world. In this, deterioration is affirmed as an inescapable part of life which should be accepted and embraced, whereas permanence is considered to be only an illusion. Entropy also explains the measure of disorder within a system and within these fleeting works entropy highlights the artwork not as a fixed object, but a process which is vulnerable to the effects of touch, weather and most importantly the unavoidable process of time passing.