Ozu Yasujiro（小津安二郎） had a film , "Tokyo Story" Described an elderly couple to Tokyo to see their children. One day they stood at a relatively high places to see the Tokyo City, the old lady suddenly said : "Tokyo is so large, If we walk into, we will be lost ? "He said :" No. " Then he griped her hand tightly and said : " I will be holding your hand this way. "
    In a  complicated and changingworld, you have one day to grip a person's hand and said to him, this world is so large, We will not stray from the other side?