Barbara Guest in reply to a question about subject matter:"Oh, yes. The subject matter. The subject matter. I know I was talking to some students in Santa Fe and they were very worried about when I said well what have you been writing, and they said, well, not very much. I realized that they were disturbed more by what they thought was in front of them that they didn’t want to write about, so I told them that the subject matter wasn’t important. And this released them. They were thrilled. They went around for days saying she said the subject doesn’t matter. Because the idea is that sometimes you find the subject as you proceed with the poem. It’s a good rule. It doesn’t always work, but it’s a good rule."
This comes from a transcription recently done of Charles Bernstein's LineBreak interview with Guest in 2005. The full transcript will be published in Jacket2.
"I teach horizontally, meaning that while I might begin with a fixed idea of what I'm going to teach that day, I let it drift rhizomatically way off topic, often pulling it back when it gets too far. I rely on non-fixed materials to teach this way; the whole world is at my fingertips. Should I go off on a tangent about John and Rauschenberg and their love relationship as expressed in Rauschenberg's bed, an image of that bed is always a click away. From there, we can head anywhere into the non-fixed universe, be it film, text or sound. And of course, that always takes us elsewhere. As Cage says, 'We are getting nowhere fast.'" 
that anyone has yet got the imaginative measure of that terrifying day six years ago. Certainly our Tolstoy has not crawled out of the rubble. The closest we have, Don DeLillo, succeeded as an essayist-journalist ("In the Ruins of the Future: Reflections on Terror and Loss in the Shadow of September,” Harper’s, December 2001) but, to my mind, failed as a novelist ("Falling Man"). One reason, perhaps, is that the remembered emotion was instantly buried under a pile of cultural junk.' - Tod Gitlin in his review of Susan Faludi's The Terror Dream (written for 
