Blue Guitars, Jars and Plums

I was reading participants' blogs in Bloglines when I came upon a link to Hector J. Vila's blog, went onward to the Artswriting Experiments blog at Middlebury College and came across Wallace Stevens' "Man with the Blue Guitar". It immediately reminded me of the times I spent at the University of Ljubljana, of Dr Reagan and Dr Peck, who were enthusiastically broadening our horizons with American poetry.
It also reminded me of another poem - William Carlos Williams' "This is just to say". For years I read these poems to every new generation of secondary school students and invariably got a very positive response from them. My goodness, why did I stop?
Can teaching ESP involve writing short comments on poetry?