Prana is sometimes explained by saying, “It is simply oxygen.”
That is inaccurate.
Oxygen is a specific chemical element that plays a vital role in the functioning of the human body. It can be measured in the blood, studied in laboratories, and described through modern physiology.
Prana is a very different concept.
What Is the Difference?
In Yoga and Tantra, Prana refers to vital breath, internal movement, and a life-sustaining force.
It belongs to a traditional model of the body that also includes concepts such as nadis, chakras, and other elements of subtle-body theory.
Oxygen, by contrast, belongs to the language of modern biology and medicine.
In other words, these are two different ways of describing the human being.
Why Are They Often Confused?
Because breathing genuinely affects our physical and mental state.
When a person slows their breathing, breathes more deeply, or changes its rhythm, this can influence:
– physiological arousal; – heart rate; – concentration; – feelings of calm or tension.
Because of this, it can be tempting to say, “This is the movement of Prana.”
But scientific explanations of breathing do not demonstrate the existence of a separate physical energy called Prana.
For this reason, it is better not to translate ancient concepts directly into the language of modern physiology.
Prana is an important concept within the traditional yogic understanding of the human being. Oxygen belongs to the scientific understanding of the body.
Both may describe aspects of the same human experience, but they do not mean the same thing.