In focusing on slippages of perception, slippages that raise the questions whether and how prior concepts or categories of understanding might be necessary for sensory events to be resolved as perceptions — and thus for us to know the world — Stewart engages in a mode of poetic exploration different from, and complementary to, one based on exploiting the slippages and cultural bindings of the linguistic material itself. This mode is a peer rather than an heir to that of Language writing.