Can = soul, according to both BTN and this site:
http://turkishculture.org/pages.php?ChildID=209&ParentID=12&ID=56&ChildID1=321&miMore=1#C
Kutadgu is probably connected to this work:
http://en.wikipedia.org/wiki/Kutadgu_Bilig
~ Ivayla,
skillfully disguised as a responsible adult