In the discussion on simegen-l "What Else Is Like Sime~Gen" Tony wrote:
Sime-Gen is about life, and the ways in which it's superior to
death, and the ways in which sometimes you have to risk death to reach a better
life. It's about the fitting together of opposites (which is one of the
other things where The Paladin by C. J. Cherryh
For more on this topic see the archives of simegen-l.