What is the author's style in Tropic of Cancer by Henry Miller?

Henry uses language that is still considered course, rude, insulting and denigrating to women. The book is a difficult read for anyone sensitive to this kind of language, yet it serves the purpose to gain attention like a sharp slap to the face. In other passages, his language becomes poetic and full of imagery as highly complex thoughts and impressions are developed. Either way, a tone of desperation comes in as if the author must shout and rant in order to create something, like a woman giving birth. His language changes at the end of the story, which reflects an enormous change in his character.