he has promised himself that he 'll try not to stuff his dark tower fantasies with unpronounceable words in some made-up ( not to say fucked-up ) language-his editor , chuck verrill in new york , will only cut most of them if he does-but his mind seems to be filling up with such words and phrases all the same : ka , ka-tet , sai , soh , can-toi ( that one at least is from another book of his , desperation ) , taheen .