The chapter opens with a soliloquy by Dr. Manette, in which she tells the audience that she is a member of the Luo family and that she has learned the art of metamorphosis. She explains that her goal in life is to use her powers of perception to understand the world around her. She has learned that the world can be divided into three parts: the physical world, the mental world, and the spiritual world. She believes that the three parts of the world are the same and that they can be combined to create the world she sees. She also explains that the reason she is able to perceive the world so well is because she has the ability to sense the world's axis, which is the axis of yin and yang. She uses this knowledge to deduce that the flow of blood in the body is governed by the meridians, which are the centers of the body's energy. She then explains how she has used the spring-sun elixir to create a blood silkworm, a parasite that attaches itself to her body and grows faster. She says that the silkworm's growth is caused by the change in the yin and the yang of the elixir, which makes the blood flow faster throughout the body. The elixir also helps the blood to run faster, which in turn makes the silkworms attach themselves to the body, and grow faster. The chapter ends with a discussion of the importance of cultivating one's spirit, which Dr. Menette believes is the most important skill a person can learn. He explains that if a person does not cultivate his spirit, he will not be able to