Mantra Meditation Explained: From Traditional Practice to Transcendental Meditation

Herbert Benson, the Harvard physician who built a secular version of the practice in the 1970s, suggested the word “one”. He chose it, he said, because his student volunteers lost count on the way to ten.¹ That plain choice shows what mantra meditation asks of you: repeat a word, sound or short phrase, silently or aloud, and come back to it each time your attention slips.

Julie Lynch and colleagues define the practice the same way in a 2018 Irish systematic reviewsystematic review: A review that fixes its question and its rules for including studies in advance, then searches out every study that fits and weighs them together. Some systematic reviews pool the results into a meta-analysis; others describe what the studies found without combining the numbers.Full entry in the glossary, and their definition stretches from Hindu japa to Transcendental Meditation (TM).² On the benefits, a 2022 Spanish meta-analysismeta-analysis: A study that combines the results of earlier studies on the same question into one overall estimate. Pooling makes the estimate more precise, but it cannot repair the studies it pools: a meta-analysis of surveys is still survey evidence.Full entry in the glossary by Yolanda Álvarez-Pérez’s team pooled randomized trials and found small-to-moderate drops in anxiety, stress and depression symptoms, while warning that none of the trials was at low risk of bias.³ The word costs nothing, and the practice belongs to the attention training covered in the definition of mindfulness and the evidence behind it.

What is mantra meditation, and why repeat a word?

A mantra gives attention one simple thing to hold: a sound you make yourself, in your head or out loud. The Sanskrit word joins a root meaning mind with a suffix meaning tool, so a mantra is a tool for the mind.⁴

Lynch’s review describes the proposed reason repetition helps. Most conscious thinking runs as inner speech, and a mantra occupies that same channel, leaving less room for the running commentary of worry.² Nobody has proven that mechanism. In a small 2015 brain-imaging study in Israel, 23 people who had never meditated silently repeated the Hebrew word for “one”, and activity dropped across a brain network linked to self-focused thought, compared with plain rest.⁵ A scan shows a pattern of brain activity; it cannot show that anyone felt calmer.

A nurse waiting for the lift after a hard shift who silently repeats a short word gives her inner voice a job, and the replay of the shift has less space. Mantra practice is a focused-attention method with a word where the breath would otherwise be. If following the breath makes you tense, a word is a reasonable anchor to try instead.

How to do mantra meditation: a 10-minute first session

A first session needs a word, a quiet seat, ten minutes on a timer and a gentle return to the word each time you drift. The steps draw on Benson’s method and on the World Community for Christian Meditation’s instructions, which agree on them, though no trial has tested each step on its own. For the breath as the anchor instead, there is a beginner’s guide to sitting with the breath.

1. Pick the word before you sit

Choose it in advance so you are not auditioning words mid-session. One or two syllables works well: “one”, “peace”, “calm”, or a word from your faith.

2. Settle into a chair and give the timer ten minutes

Sit upright on a chair, or in another comfortable position, with your eyes closed or lowered, let your muscles relax, and let a timer keep track of the time. Benson recommended 10 to 20 minutes a day, so ten is a fair start.¹

3. Say the word inwardly at an unhurried pace

Let the word fall into a rhythm, perhaps once on each out-breath, without forcing your breathing to match it.

4. Notice the drift and pick the word up again

Thoughts will pull you off the word again and again. The Christian meditation guidance is not to fight distractions and to return to the word as soon as you notice you have stopped saying it.⁶ Coming back is the practice itself, so a session with twenty returns has gone as intended.

5. Drop the word and rest for a minute

When the timer sounds, stop repeating, notice how you feel, then get up slowly.

Ten minutes with one word

• Pick one short word before you sit
• Sit comfortably, close or lower your eyes and start a ten-minute timer
• Repeat the word silently at an easy pace
• Each time a thought pulls you away, go back to the word without scolding yourself
• Rest for a minute after the timer before standing

Can I choose my own mantra?

Yes. Benson’s method uses any word, phrase, sound or short prayer you choose.¹ What matters more is that the word is easy to say and that you keep it.

Three tests help. The word should be short enough to repeat without effort. It should feel neutral or calming, so skip a word tied to a person, a worry or your job; a manager who picks “focus” may find it drags her straight back to her inbox. And it should stay the same: the Christian meditation guidance asks you to keep one word for the whole session and from day to day, so the repetition becomes familiar.⁶

If you borrow a word from a living tradition, remember it is a prayer for the people who use it.

Should you say a mantra aloud or silently?

Both are traditional, and the research comparing them is thin. Japa, the Hindu practice of repeating a mantra, is done at three volumes: spoken so others can hear, whispered with barely moving lips, or recited only in the mind.⁷ TM and Benson’s method are silent.

The one direct comparison we found is a small 2024 trial at Macquarie University in Australia. Thirty-four students were randomly assigned to chant “om” aloud with a recording or to repeat it silently while the recording played, for 12 minutes. Saliva cortisol fell about equally in both groups, while self-reported anxiety fell more after chanting aloud. There was no group that did not chant, and some students who chanted aloud reported discomfort or worry, which the authors linked to shyness or performance anxiety.⁸

Choose by setting. A silent word works on a train or at a desk. Saying it aloud may help when your mind keeps racing and you are alone or in a group you feel at ease with. If it makes you self-conscious, drop to a whisper or to silence.

Japa, Waheguru and the Jesus Prayer: one practice in four religions

Repeating a sacred word is one of the oldest meditation practices, and versions of it run through Hinduism, Buddhism, Sikhism and Christianity. Scholars date the use of mantras in India to before 1000 BC, in the Vedic tradition.⁴

In Hindu practice the repetition is called japa, a practice also found in Buddhism, Jainism and Sikhism. It may be spoken softly or recited only in the mind, and the repetitions are often counted on a string of prayer beads, a japamala, which usually has 108 beads.⁷ In Sikhism, Waheguru, a name for God, is the main mantra, repeated in meditation by initiated Sikhs.⁹

Christianity has its own forms. Eastern Orthodox Christians repeat the Jesus Prayer, most often “Lord Jesus Christ, Son of God, have mercy on me, a sinner”, and early monks taught saying a short version with each breath.¹⁰ They count it on a knotted prayer rope.¹¹ In the West, the World Community for Christian Meditation asks meditators to repeat the prayer word “Maranatha” silently for 20 to 30 minutes, morning and evening.⁶

Beads and ropes do a practical job: your fingers keep the count, so you never need a clock or a tally in your head, and a timer does the same for a beginner. In each tradition the word carries religious meaning, which is why a secular version had to be built on purpose.

Further reading

• 

  The Relaxation Response

  by Herbert Benson, Miriam Z. Klipper

  Benson's own 1975 account of the plain word-repetition method described here: a simple word, a passive attitude and a quiet setting.

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How Herbert Benson took the religion out of the mantra

The best-known secular mantra method comes from Benson, who set it out in his 1975 book The Relaxation Response. His work began after Transcendental Meditation practitioners visited Harvard Medical School in 1968 and asked to be studied, believing TM lowered blood pressure. His method had four elements: a mental device (a simple word, phrase or activity to repeat), a passive attitude, a quiet place and a comfortable position. By 1996 only the repeated word and the passive attitude were judged essential.¹²

1. 1955TM taught in India
2. 1968TM meditators ask Harvard to study them
3. 1975The Relaxation Response
4. 1996Two essentials: word and attitude

His instructions, as a 2011 Harvard Health blog post summarized them, are to sit quietly with eyes closed, relax your muscles and silently repeat a word, phrase, sound or short prayer of your choosing, letting stray thoughts come and go.¹ The word can be as ordinary as his own “one”, because its job is to give attention somewhere easy to return to.

Those two essentials make a useful check after a restless session. If the word kept slipping, it may be too long or too loaded; if you spent the ten minutes annoyed at every stray thought, work on the passive attitude. People who pray can use a short prayer, which Benson’s list includes.

What is the difference between mantra meditation and Transcendental Meditation?

Transcendental Meditation is one branded form of mantra meditation: a standardized technique taught in a paid course, with a mantra chosen for each student by a certified teacher. Other mantra methods let you pick your own word and learn for free.

Maharishi Mahesh Yogi began teaching the technique in India in 1955, and it became popular in the 1960s and 1970s, helped by famous students such as the Beatles. TM is practiced silently for about 15 to 20 minutes twice a day, and the course cost varies by country and personal circumstances.¹³ The TM organization says each mantra is “a specific sound chosen for you personally” by the teacher, and that it is not meant to keep the mind focused, which is how the organization sets TM apart from methods that ask you to concentrate.¹⁴

Much of the research on mantra meditation is research on TM, and many TM trials have been run by people linked to the organization: a 2004 independent review of TM blood pressure trials found that none of those it could evaluate had authors free of such ties.¹⁵ The blood-pressure trials themselves are weighed in a comparison of meditation types and their evidence. If you are weighing TM against a free method, ask what the fee buys. The organization says its four-day course includes one-on-one teaching by a certified teacher and continuing follow-up support.¹⁴ Some people value that, and no trial we found shows that an assigned mantra works better than one you pick yourself.

What two systematic reviews found, and how far to trust them

Two systematic reviews of mantra meditation found small benefits for anxiety, stress and low mood, and both rated the studies behind that verdict poorly. Lynch’s 2018 review of studies in healthy adults found minimal to moderate benefits and judged more than 90 percent of its studies to be of weak quality.²

The study

Limited evidence

Fifty-one mantra trials pooled, with small gains and no trial rated low risk of bias

The Spanish team pooled 51 randomized trials of mantra-based meditation, 27 of them testing TM, with searches up to April 2021. Compared with control groups such as waiting lists or usual care, meditators reported small-to-moderate reductions in anxiety, stress and depression symptoms. Against relaxation training, the four anxiety trials with usable data showed no clear difference. None of the trials was rated at low risk of bias, and only four reported on side effects.³

The authors, funded by Spain’s Ministry of Health, saw larger effects against waiting lists than against active comparisons, which leaves open how much of the benefit belongs to the mantra and how much to sitting quietly with attention and support. Most participants were students, employees or people with physical illness, so the findings tell us little about treating a diagnosed anxiety or depressive disorder.³

A student who repeats a mantra before exams and feels calmer cannot tell from these trials whether the word, the quiet or the pause did the work. For ordinary stress, a mantra looks like a reasonable option among several, and the few trials that compared it with relaxation training found no clear difference.

Who should go carefully, and where to find help

The NCCIH, part of the US National Institutes of Health, says meditation is usually considered to carry few risks, though harms have been studied too little for firm statements about safety. Its summary of a 2020 review puts negative effects from meditation in general at about 8 percent of participants, with anxiety and depression the most common. It also advises people not to use meditation as a substitute for conventional care or as a reason to put off seeing a health care provider about a medical problem.¹⁶

The grouping by urgency below is ours; each number comes from the body cited beside it.

• Now: if you have thoughts of suicide or self-harm or cannot keep yourself safe, call your local emergency number. Across the EU it is 112, a number the European Commission says also connects on GSM mobile networks worldwide.¹⁷ The US National Institute of Mental Health gives 911 when a life is under threat and 988, the Suicide & Crisis Lifeline, for calls or texts.¹⁸ The UK’s NHS lists 999 or A&E for a life at risk, with Samaritans on 116 123.¹⁹ Readers in other countries can look up their national crisis line.
• Over the next few days: if panic, dark moods, sleeplessness or a sense of detachment from yourself keep coming back after sessions, pause the practice and see a doctor.
• Before you begin: raise any condition in the box above with a clinician.

The bottom line

Mantra meditation is linked to modest relief from stress and anxiety, with no clear edge over relaxation training in the few trials that compared them, and the studies need to be better. The practice is free, and the word can come from japa, the Jesus Prayer, Benson’s “one” or your own choosing. Pick one calm word before your next break, sit with it for ten minutes, and return to it each time your mind drifts.