Who is Ka (Kerim Alakusoglu) Bey from Snow and what is their importance?

Ka is the main character of the novel, the one who is the thread that binds the story together. Ka is an exiled poet, who grew up in Istanbul and who as a young man in college wrote something that was against the state. He, therefore, had spent the last eight years in Frankfurt, Germany in the Turkish community. After hearing that an acquaintance from college was divorced, Ka travels to Kars hoping to fulfill his lifelong dream of finding a wife.