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The old version of this post described hatha yoga as an ancient Indian practice that is “more spiritual than physical,” designed to prepare the mind for meditation, and promised a set of 24 poses that has not survived on the page. Another post on this blog, What Is Hatha Yoga?, describes a typical class. This one looks at the other side: what the word means, what the tradition was for and how to practice sensibly today.

What does “hatha” mean?

There are two common explanations. Many modern books say that ha means sun and tha means moon, so hatha yoga unites the two. The scholar Jason Birch, in a paper on the meaning of hatha in early hatha yoga, notes that this sun-and-moon reading is first found in a text from around the fourteenth century, and that other early sources suggest hatha means “force,” in the sense of forceful methods or effort. The two readings can sit side by side as long as the sun-and-moon one is understood as a symbolic interpretation, not the original meaning.

What was hatha yoga for?

The old post said the sages designed it to gain control of the body’s energies, as preparation for meditation. That is close to how the classic manual, the Hatha Yoga Pradipika, presents it. It was compiled in the fifteenth century by Svatmarama, who introduces hatha as a preparatory stage for physical purification before higher meditation, or raja yoga. So the old post is right that the tradition is not only about fitness. But today most hatha classes in the United States are taught as exercise and relaxation, and many people value them for that.

What happens in a modern hatha class?

According to Harvard Health, hatha is a combination of many styles. A class typically begins with breathing exercises (pranayama), then moves through poses (asanas) and ends with a final rest called savasana. The National Center for Complementary and Integrative Health says that yoga in the United States generally emphasizes physical postures, breathing techniques and meditation, and that research suggests it may help with stress, neck pain and headaches, among other things. It does not show that yoga awakens “enlightened consciousness,” which is a traditional spiritual aim, not a health claim.

How should you move through the poses?

The old post gave advice that is still sound. Move smoothly from one pose to the next, like a slow dance. Stay in each pose long enough to settle in, breathe from the diaphragm and not the chest, do not stretch beyond your limit or force the body, and relax into the pose without worrying about doing it perfectly. Over time you should find that you become more flexible. Add one more rule from the safety research: stop if you feel pain, and skip extreme practices such as headstands and forceful breathing until a teacher has shown you how.

Do you need a teacher?

The old post said that hatha yoga is best taught in person, and that drawings and written instructions are only a rudimentary aid. The NCCIH agrees: yoga is generally considered safe for healthy people when done properly under the guidance of a qualified instructor, and learning on your own has been linked to increased risks. Pregnant women, older adults and people with conditions such as knee or hip injuries, severe high blood pressure, balance problems or glaucoma should talk with their health care provider and the instructor first.

How many poses do you need?

The old post claimed that its 24 poses were “all you will ever need” for quieting the mind before meditation. No fixed number is required. A gentle routine of a few poses, breathing and a short rest is a fine start; our guides to yoga postures and styles and a gentle morning routine for beginners show how to begin.

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The old version of this post was only a few short paragraphs. It said yoga began in India 3,000 to 4,000 years ago, that it has never been a religion, that about 5 million people in the United States practice it, and that many health professionals feel it can be part of a treatment plan. This rewrite expands each claim and checks the numbers.

How old is yoga, and where did it begin?

The word comes from the Sanskrit for “to join” or “union,” as the old post says. Historians agree that yoga began in India, but they disagree about when. In their introduction to Roots of Yoga, Mallinson and Singleton write that systematic yoga techniques are hard to find in South Asian sources before about 500 BCE, and that popular claims that the oldest Vedic texts prove an ancient yoga practice are speculation. The 3,000 to 4,000 years in the old post is therefore an estimate that cannot be proved. A safer statement is that texts about yoga-like practices date from the first millennium BCE. Our post on Patanjali’s Yoga Sutras covers the best-known classical text.

What are the three parts of hatha yoga?

The old post says that hatha yoga, the kind you see in a gym or YMCA, has three parts: poses (asanas), breathing techniques and relaxation. That matches Harvard Health’s description of a typical class, which starts with breathing exercises, moves on to poses and ends with a final relaxation called savasana. Hatha texts themselves began to appear in the Middle Ages (historians place the first ones between roughly the ninth and eleventh centuries), and the Hatha Yoga Pradipika, written by Svatmarama in the 15th century, is the best known. If you want to know what a modern hatha class looks like, read what hatha yoga is.

Is yoga a religion?

The old post says that yoga has never been a religion. That is partly right. Yoga developed within Indian philosophical and religious traditions, including Hindu, Buddhist and Jain ones, and Britannica describes it as something that may be atheistic or theistic and can adopt different principles. In most American classes it is taught as exercise and relaxation, with some teachers adding chanting, meditation or philosophy. If you are unsure, ask the teacher what a class includes and whether you can skip any part you are not comfortable with.

How many Americans practice yoga?

The old figure of 5 million is out of date. According to the National Center for Complementary and Integrative Health, the share of U.S. adults who practiced yoga rose from 5.0 percent in 2002 to 15.8 percent in 2022, based on a national survey, which is roughly one adult in six. In 2012, 94 percent of adults who practiced it did so for wellness-related reasons. Our post on how yoga became popular in America tells that story.

Do health professionals recommend yoga?

The old post said that you may be given yoga postures by a physical therapist, and that many health professionals feel it can be part of a treatment plan. That is a fair statement if it is read carefully. The NCCIH says that research suggests yoga may help with stress, neck pain and some other problems, but the evidence is mixed in places, and it is not a replacement for medical care. Some therapists do use yoga-based movements, so ask your provider whether a gentle practice suits your condition. For the full picture, see yoga explained: what it is, who practices it and what the research supports.

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