What is World & Response?

World and Response are two designated lines in every hexagram. The World line (世) represents the querent; the Response line (應) represents the other party or the subject of the question. Their positions are determined by the hexagram's relationship to its palace. A strong World line means the querent has power in the situation; a strong Response line favors the other side. As the Bushi Zhengzong states: "World is yourself, Response is the other party."

Source: Bushi Zhengzong (卜筮正宗), Wang Hongxu, 1709