I've been reading a lot of books about mental illness, the brain, & madness over the last few months in preparation for teaching a course with my colleague Stephen Casper, a historian, called The Literature and History of Madness. I've been reading mostly in the "popular" rather than the scholarly literature, which I will get to soon enough. Most recently, I've finished Michael Greenberg's memoir of his daughter's crack-up, Hurry Down Sunshine. One is not likely to read a less sentimental and more clear-eyed account of psychosis than this. Told with great sympathy for all involved, especially Sally, Greenberg's daughter, the story is presented without a trace of sensationalism; but what I found most intriguing about Greenberg's account is his exploration -- almost entirely in asides and very brief digressions -- of the the paradox of psychosis: that it is born of the basic human need to make sense of the world, often through language, but that when this drive goes wrong, when it seeks totality, madness results. (I still remember my friend B.A. lying on the couch in my Capitol Hill apartment in Seattle in 1975 listening to the radio because it was telling him the meaning of life & how everything made sense.) Greenberg's daughter Sally, though "learning disabled" is a verbally brilliant teenager, who ultimately gets tangled up in her own twists & turns of language & meaning. There is a moment near the end of I Never Promised You a Rose Garden, which is the ur-text of modern American psychosis, in which the wise psychotherapist who has drawn her patient out of hell vehemently insists that there is no connection between madness and imagination, psychosis & creativity; but if there is no necessary connection, there is a borderland across which the two entities regard each other, that's clear. It is a borderland into which Greenberg's sensitive account shines a narrow beam of light, revealing a few salient features of the place, which is perhaps all we can ask.