The term usually rendered as energy in English carries a wider and more specific range in its own tradition. Following how it is used clarifies why it appears across so many domains.
The word describes activity, not a substance
Early usage covers breath, steam, cloud and vapour, and extends outward from there to the functional capacity of anything that acts at all.
Applied to the body it names the capacity of an organ or system to perform its work, so a description framed in these terms is much closer to describing what something does than to naming a material it contains.
Translating it as energy imports connotations from physics that the original does not carry, including the implication that it could in principle be measured in units. Many scholars leave the term untranslated for exactly this reason.
It is described through relationships
Classical accounts describe it in terms of movement, direction, warmth, sufficiency and blockage rather than quantity in any measurable sense.
Diagnosis within these systems proceeds by pattern, combining observations that together indicate a characteristic configuration rather than a single value.
The framework is therefore relational throughout, and extracting one element from it and testing that element alone tends to misrepresent the system.
The same vocabulary crosses domains
Medicine, martial arts, calligraphy, landscape design and moral philosophy all use the term, applied to bodies, movements, brushwork, sites and character.
This is not metaphorical borrowing between separate fields so much as a single vocabulary of functional description used wherever it applies.
Understanding that explains why practitioners of apparently unrelated disciplines within the tradition can discuss their work in shared language.
Practices attached to it are diverse
Slow movement forms, breathing exercises, meditation, manual therapies and herbal preparations are all organised within the same framework.
Their observable effects differ considerably, and evidence for them varies from reasonably studied in the case of gentle movement to limited in other areas.
Grouping them together theoretically does not mean they behave the same way, and evaluating them individually is the more informative approach.
Modern integration raises real questions
Traditional practice now operates alongside conventional medicine in many countries, with widely varying degrees of regulation, licensing and required training between jurisdictions.
Some herbal preparations have genuine pharmacological activity and can interact with prescribed medicines or affect how they are metabolised, which makes disclosure to a clinician important rather than optional.
Anyone considering these approaches for a serious condition should discuss them with their doctor rather than substituting them for diagnosis or treatment.