Sentence:  Lawrence Lipton , in The Holy Barbarians , <WSD>stresses</WSD> that for the beat generation sex is more than a source of pleasure ; it is a mystique , and their private language is rich in the multivalent ambiguities of sexual reference so that they dwell in a sexualized universe of discourse . 
Meaning of the word marked with <WSD> tags:  to stress, single out as important