She seemed to have lost part of her memory, from the age of seventeen to twenty. She still remembered that on a hot summer afternoon, she was sitting by the window, concentrating on reading a copy of "A Dream of Red Mansions". The air was moist and cool, and she felt so comfortable that she just wanted to sleep. Later, she probably fell asleep, but this sleep seemed to be very long, so long that she thought she would never wake up again.