By Stefan Stenudd
Stefan Stenudd
About me
I'm a Swedish author and aikido instructor. In addition to fiction, I've written several books about life force concepts and East Asian traditions. I'm also a historian of ideas, researching ancient thought and mythology. My personal website:

Life Energy
The life energy exists in many traditions, such as qi (chi) in China, prana in India, pneuma in Ancient Greece, spiritus in Latin, and vitalism in philosophy. Here they are all explained.

Life Energy Fundamentals

Life Energy Beliefs A - Z


Life Energy Encyclopedia


Books by Stefan Stenudd:

Cosmos of the Ancients. Book by Stefan Stenudd.

The Greek philosophers and what they thought about cosmology, myth, and the gods. Click the image to see the book at Amazon.

Sunday Brunch with the World Maker. Novel by Stefan Stenudd.

Fiction. A brunch conversation slips into the mysterious, soon to burst beyond the realm of possibility. Click the image to see the book at Amazon.

Other Websites:

Qi energy

The ancient Chinese life energy qi (chi) explained and how to exercise it. Click the image to visit.

Creation Myths

Creation stories from around the world, and the ancient cosmology they reveal. Click the image to visit.

Life Energy Beliefs. God gives life to Adam, by William Blake.

Life Energy Beliefs

Life Force Ideas Around the World

Here are the Z entries of life energy beliefs around the world and from antiquity to the present. An edited and expanded version of this Life Energy A to Z is published in my book Life Energy Encyclopedia.


A. L. Chizhevsky

Z-emanation introduced by the Russian heliobiologist A. L. Chizhevsky (1897-1964), is sometimes mentioned as a synonym to life energy such as qi, which is doubtful. See also heliobiology.

Zero point energy is the term within quantum physics for the energy that particles contain at 0° Kelvin (-273° Celsius), the absolute zero. Therefore Hendrick B. G. Casimirthis energy is everpresent. It was discovered in 1958 by the Dutch physicist Marcus Johannes Sparnaay, based on a theory from 1948 by another Dutch, Hendrick B. G. Casimir (1909-2000, see the photo). There are speculations that this might be a limitless source of energy. See also free energy and heat.

Zhenjiu see acupuncture.

Zogo is the name of the traditional religion among the islanders of Torres Strait. The priesthood was called zogo-le. Zogo seems also to have been objects, especially stones, with inherent magical power. Such were the stones booya, which emanated a blue light, and were hidden when westerners came to the islands. Zogo can also be a general term for something sacred, or filled with sacredness. It is sometimes mentioned as a synonym to life energy such as qi, which is unclear.

Zone, the is within American sports an expression for when everything works out, and athletes perform the utmost. This is a state of certain euphoria (see this word) and clarity, which often arrives after extreme exertion. The phenomenon was investigated in 1978 by Michael Murphy (1930-) and Rhea Amelia White (1931-2007) in the book Psychic Side of Sports. Compare flow and peak experience.

Zone therapy (also called reflexology) is a therapeutic method where massaging parts of the feet is supposed to cure ailments in other parts of the body. The theory behind this is that parts of the feet correspond to certain other parts of the body, wherefore the stimulation of them are beneficial also to the corresponding parts. Often qi or some similar kind of life force is regarded as the agent in this process.

Zone therapy (reflexology) map.
Zone therapy (reflexology) map.

Life Energy Beliefs A to Z

A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z

Life Energy Books

I have written two books on the subject of life energy:

Life Energy Encyclopedia. Book by Stefan Stenudd.
Life Energy Encyclopedia

Qi, prana, spirit, ruach, pneuma, and many other life forces around the world explained and compared. Click the image to see the book at Amazon.

QI - increase your life energy. Book by Stefan Stenudd.
Qi - Increase your life energy

The life energy qi (also chi or ki) explained, with several very easy exercises to awaken, increase, and use it. Click the image to see the book at Amazon.