At the core of conceptual understandings underlying a common-sense comprehension of matter is an assumed opposition of the intelligible and the sensible. Drawing on the writings of Giles Deleuze, Luce Irigaray and Elizabeth Grosz, this essay attempts to rethink the relations of matter through the work of materiality in the context of art. Focusing on the installation COVERS, by Melbourne-based artist Fiona Abicare, this examination argues that a mobilization of the disordering effects of matter instigates an interval. In this passage (...) of undecidability an understanding of matter as a vehicle for expression or medium for signifying something external to itself is challenged via a ceaseless interchange across the thresholds of surface and depth, face and mask, ornament and decoration. (shrink)