From
崔护《题都城南庄》 (Cui Hu, Tang, late 8th c.):
去年今日此门中,
人面桃花相映红。
人面不知何处去,
桃花依旧笑春风 (A year ago on this day, within this gate, a human face and peach blossoms reflected each other red. The face now - I do not know where it has gone; the peach blossoms, as before, smile at the spring wind). The story: the young Cui Hu, thirsty, knocked on a cottage gate and was given water by a beautiful girl; a year later he returned, the gate was locked, and in grief he wrote the poem on the door.