Residue, draws inspiration from Thomas Young's Double Slit Experiment demonstrating how light and matter can display characteristics of both classically defined particles and waves. Whereas matter was assumed to consist of either particles, or waves, following the experiment the concept of wave-particle duality emerged. In Residue, Farrugia’s figures are reduced to unmethodical particles where attention is given to the space in between such particles rather than the completeness of the physical body itself. The presence of negative space defines the particles in their individuality, but also allows them to exist collectively, creating a new form that is present in a given environment. The resulting form is abstracted and veiled, mirroring Jung’s theory that one’s shadow is an integral part of the self. It is through the process of individuation and integrating the ‘shadow’ into the psyche that one can develop the individual from the universal. The figures are ethereal, conceding a sense of fluidity in space and time. They exist in their singularity and plurality with their past and future selves in a fixed time that paradoxically stretches into the infinite. The exhibition therefore questions the interdependence between the physical and spiritual; addressing the nature of existence and consciousness, and of body and spirit. The quantum dimension of modern physics is extended to existential themes that resonate with modern spirituality.