1. Practise the elixir of life, hoping to become immortal by taking the elixir of life, that is, the alchemy school, which was later called Waidan.
2. The practice of Inner alchemy has developed into a meditation in later generations, that is to say, some theories and academic vocabulary about refining Outer alchemy have been introduced into body meditation, or what is now called Qigong.
3. Wuqinxi and Tai Ji Chuan are the representatives.
During the Qin, Han and Wei Dynasties, alchemy was popular, but it declined because of widespread poisoning caused by consumers. Static Qigong, dynamic Wuqinxi and Tai Ji Chuan continue to be developed and enriched.
Neijing Map represents the true meaning of Taoist meditation thought and technology, and its formulaic expressions, riddles and argots appear in a large number of illustrations and discussions, which is a typical style of Taoism since the Song and Ming Dynasties.
According to analysis and research, Neijing Tu was painted by Taoist painters in Ruyi Pavilion in the Forbidden City in the early years of Qing Dynasty. The creative basis of Neijing Map originated from Living in Gui Zhi written by Yin Zhenren, an anonymous disciple of Ming Dynasty, during the Wanli period (1573- 16 19). Someone put the map of Neijing. It is believed that Neijing Tu directly inherits the enigmatic painting style of exquisite scrolls such as Life in Gui Zhi, which makes the illustrations of Zhou Xiaotian Fa in Gong Jing more obscure, vivid and artistic, and makes the whole human image completely hidden in a "landscape painting", thus vividly telling the essence, methods and skills of Taoist "Inner alchemy" with enigmatic words and beautiful pictures.
The so-called Inner Elixir: It means that people take the human body as a metaphor for a furnace and a jar, and use the essence of the essence to form an elixir through spiritual cultivation, that is, Inner Elixir, also known as Holy Fetus. Sui Suxuan Lang called Qi Inner Dan. Wang Fuzi revealed the characteristics of Neidan: "There are many hidden characters, which are called dragon and tiger, and they call themselves the theory of lead and mercury coitus."
The so-called Xiao Zhou Tian: the full name is "Xiao Zhou in the cycle of Yin and Yang". The practitioner sits quietly with his eyes closed, inhaling breath through his nose, so that the inhaled breath is under the umbilicus (Tian Dan), passes through the anus, goes up along the tail of Du meridian (Xiaguan), passes through Jiaji point (Guanzhong) to Jade Pill (Shangguan), reaches Baihui on the top of his head, enters Min Pill (on the forehead or on the brow), and connects with Ren meridian along his face to reach his tongue. A yogi can decide where to store his thoughts according to his physical condition and illness, so as to strengthen treatment and prolong life.
Taoism believes that after the upper, middle, lower and third rounds, the upper, middle and lower passes are opened, and the ren and meridians are circulated, which can enhance physical strength, resist diseases and prolong life.