 Cavendish will have to be careful about putting any weight on this last argument, if she also holds that we have no idea of God and no ideas of any immaterials more generally, but she does make sure to offer the additional argument that contains no theological premises. Non-being is nothing, she supposes, and in addition nothingness cannot have any properties. The universe is a plenum of contiguous bodies, and these bodies are also perceptive and are in regular communication with the bodies in their local environment. Cavendish is a panpsychist in the sense that she holds that all creatures exhibit mentality, and she holds that there is no space that is not inhabited by a creature. All creatures think, and there is no region of the universe that does not exhibit mentality.[26]