Vital Substances: Qi

6 Functions of Qi

  • Holding 

    • Qi can hold the Blood and Body Fluids in the right place

    • LU Qi holds the sweat 

    • SP Qi holds the Blood within the vessel

    • KD/UB Qi hold urine within the bladder

  • Transporting

    • Qi transports Blood and Body Fluids around our body

    • Qi can ascend, descend, exit, and enter in different tissues and organs in our body

    • Ascending and exiting are Yang, and descending and entering areYin

  • Raising

    • As Qi is Yang in nature, Qi is inclined to its raising function

    • Qi can raise the Blood and Body Fluids, and even organs to the right place

  • Protecting

    • Qi can ascend and exit, in other words, it can go up and outward to protect the body

    • Defensive Qi irrigates the space between the skin and muscles, and it pushes out any exterior pathogens that invade that space to get deeper into our body

  • Warming

    • Qi is Yang in nature, so Qi is able to warm

  • Transforming 

    • When there is warmth, transformation can take place

    • SP Qi transforms food into Food Qi

    • HT Qi transforms Food Qi into Blood

    • KD/UB Qi transforms fluids into urine

    • Essence can transform into Qi and Qi itself can transform into Mind

Movements of Qi

  • 4 movements of Qi: ascend, descend, exit, and enter

  • Theory of 5 Elements: Liver Qi expands, meaning it ascends and exits, Heart Qi flares upwards, Lung Qi contracts, meaning it descends and enters, and Kidney Qi moistens downwards

  • Triple Burner: 

    • Heart Fire in the Upper Burner descends to the Lower Burner to warm the Kidney Water, and Kidney Water in the Lower Burner ascends to the Upper Burner to cool the Heart Fire

    • As Spleen Qi in the Middle Burner ascends, Liver Qi ascends from the Lower Burner on the left; as Stomach Qi in the Middle Burner descends, Lung Qi descends from the Upper Burner on the right

Production of Different Types of Qi 

  • Qi of the Stomach and Spleen together are called, “Central Qi” or “Zhong Qi” 

  • The Stomach Qi “rots and ripens” the food, then the Spleen Qi transforms that into “Food Qi” or “Gu Qi” 

  • Food Qi rises to the chest, enters the Lung, combines with the air, “Qing Qi,” and becomes “Gathering Qi” or “Zong Qi” 

  • With the help of “Original Qi” or “Yuan Qi,” Gathering Qi transforms into “True Qi” or “Zhen Qi” in the Lung

    • True Qi has two forms: “Nutritive Qi” or “Ying Qi,” and “Defensive Qi” or “Wei Qi”

    • Nutritive Qi flows within the Blood Vessels; nourishes the organs

    • Defensive Qi flows outside the Blood Vessels; protects the exterior of the body and regulates the temperature of the body by controlling the sweat pores

  • Food Qi also rises to the chest, goes to the Lung and then enters the Heart, where it is transformed into the Blood with the help of an agent called “Original Qi” or “Yuan Qi” 

Original Qi

  • It facilitates the transformation of Gathering Qi into True Qi in the Lung

  • It facilitates the transformation of Food Qi into the Blood in the Heart

  • It is known as the motive force for transformation in physiological activities

  • It originates in between the two Kidneys, related with the Essence and the Fire of the Gate of Life

  • From the Kidney, it spreads to the entire body and organs through the Triple Burner

  • It emerges at the Source points of each acupuncture channels 

Next, we are going to learn about the third Vital Substance, Blood. If you have any feedback or questions about the material covered, please don’t hesitate to contact at junhwa@tcmexplained.com. Until next time. 


* The content is provided only for education purposes and is not intended to be a substitute for professional medical advice, diagnosis, or treatment.

References

1. Cheng, Xinnong, ed. Chinese Acupuncture and Moxibustion. 3rd ed. Fifteenth Printing 2014. Beijing: Foreign Languages Press, 2012.

2. Kaptchuk, Ted J. The Web That Has No Weaver: Understanding Chinese Medicine. 2nd ed. New York: McGraw-Hill, 2000.

3. Maciocia, Giovanni. The Foundations of Chinese Medicine: A Comprehensive Text for Acupuncturists and Herbalists. 3rd ed. Philadelphia: Elsevier Churchill Livingstone, 2015.