I lost my sister, Gennie, to my silence and her pain and despair, to both our angers and to a world's cruelty that destroys its own young in passing - not even as a rebel gesture or sacrifice or hope for another living of the spirit, but out of not noticing or caring about the destruction. I have never been able to blind myself to that cruelty, which according to one popular definition of mental health, makes me mentally unhealthy.