The Healing Science of Chanting
- Mar 16
- 5 min read
Carmela is an internationally recognised yoga educator and movement specialist with over 25 years of experience. She is the founder of Yoga Rhyth’OM and leads teacher trainings, retreats, and wellness programs that blend traditional wisdom with modern science.
In a world of constant stimulation, productivity pressure, and digital noise, the mind rarely rests. For many people, mental activity does not simply switch off, it loops. Thoughts repeat themselves, worries spiral, and there is a lack of present awareness. Many often refer to this as the “monkey mind,” but modern neuroscience recognises the same trend as persistent activation of the brain’s default mode network, responsible for constant thinking and stress.
Chanting, aka mantra, offers a surprisingly simple yet profound solution. Rather than attempting to silence the mind, mantra gives the mind something to rest upon. Through repetition, sound, and rhythm, the nervous system is gradually guided away from AGITATION and towards REGULATION.
What is mantra?
The word mantra comes from Sanskrit: man, meaning “mind,” and tra, meaning “tool” or “instrument.”
"Mananāt trāyatē iti mantrah" is a Sanskrit phrase:
mananāt – from manana (reflection, contemplation, repeated inward attention)
trāyatē – “that which protects, liberates, or carries across”
mantraḥ – mantra
That which protects or liberates the mind through repeated contemplation. Unlike affirmations or internal dialogue, a mantra does not require intellectual engagement. Its potency lies in steady repetition. The mind, which naturally seeks rhythm and pattern, begins to synchronise with the vibrational patterns. Over time, this repetition reduces mental wandering and creates a sense of calm.
Mantra does not require belief. You don’t need to adopt a spiritual identity or religion for the mantra to work. It functions through attention, breath, vibration, and nervous system response mechanisms that are universal.
Chanting across cultures
Mantra is not unique to yoga. Across history and cultures, humans have instinctively used repetitive sound to regulate emotional states and create a collective resonance.
Mahatma Gandhi was known to repeat the mantra Rām, a mantra that signifies the indwelling presence of the Divine, using it as a steady anchor to calm the mind, cultivate moral clarity, and remain rooted in non-violence during periods of immense personal and political pressure
Within the Islamic tradition, Indigenous cultures and Tibetan Buddhism, chanting all share common elements: rhythm, repetition, breath, and sound vibration. Long before scientific instruments existed, these traditions recognised that sound could settle the mind, unify groups, and induce states of calm and devotion.
Modern research is now confirming what ancient cultures intuitively knew: sound, when used rhythmically, has a direct effect on the nervous system.
The science of repetition, breath, and the vagus nerve
From a physiological perspective, mantra works on several levels simultaneously. Chanting naturally slows the breath, lengthening the exhalation. This alone activates the parasympathetic branch of the autonomic nervous system, often referred to as the “rest and digest” response. When chanting is vocalised, vibration passes through the throat, mouth, chest, and diaphragm areas richly innervated by the Vagus Nerve.
The Vagus Nerve plays a key role in emotional regulation, heart rate variability, digestion, and stress resilience. Research has shown that repetitive chanting and prayer can increase vagal tone, lower blood pressure, and stabilise heart rhythms. A study by Bernardi et al. (2001) demonstrated that rhythmic mantra recitation significantly slowed respiration and enhanced parasympathetic dominance.
Additionally, neuroimaging studies suggest that repetitive meditative practices reduce activity in the brain’s default mode network, the very system associated with overthinking and anxiety. In simple terms, a mantra helps interrupt mental loops by offering a stable sensory anchor.
Why Sanskrit is so potent
One often overlooked aspect of mantra is the physicality of sound. Sanskrit, the classical language of yoga, utilises the full range of the mouth, lips, teeth, tongue, palate, and throat. Each syllable requires precise articulation, stimulating sensory nerves and engaging the brain more fully.
By contrast, modern English tends to be spoken with minimal mouth movement. Over time, this can limit sensory feedback and reduce somatic engagement. Chanting Sanskrit reawakens dormant muscular and neural pathways, transforming mantra into a whole-body experience rather than a purely mental one.
From monkey mind to calm: A personal experience
For me, mantra became a refuge during periods when the mind felt relentless. Like many, I spent years trying to “quiet” my thoughts, only to find that the more I tried to stop thinking, the louder the mind became.
Mantra offered a different approach. Instead of battling thoughts, I replaced them. Repetition gave my mind a single thread to follow. Over time, the urgency to think softened. The mental noise did not disappear at first, but it lost its grip.
The calm that emerged was not forced, it was organic. Mantra teaches that stillness is not created through suppression, but through gentle redirection.
An invitation to experience mantra
To experience the effects of the mantra directly, you might like to try a simple practice using
AUM (often written as OM)
Begin by sitting comfortably and allowing the breath to settle, then chant AUM audibly on each exhalation for two to three minutes, feeling its vibration move throughout the body. After a few minutes, gently transition the chant inward, continuing to repeat AUM silently in rhythm with the breath for a further two to three minutes. When you finish, pause and notice your internal state, the quality of your breath, the pace of your thoughts, and your overall sense of steadiness.
To experience the full potency of a chosen mantra, a commitment of 40 consecutive days is often recommended, as steady repetition begins to create noticeable and lasting shifts by strengthening neural pathways through what neuroscience refers to as the kindling effect. This mirrors the teaching of the Yoga Sutras of Patanjali (I.14), which reminds us that. “Practice becomes firmly established when it is undertaken for a long time, without interruption, and with sincere commitment.”
For those wishing to explore mantra beyond theory, I will be guiding an immersive Yoga and Wellness retreat in Vietnam from 23 September 2026, where we will dive deeply into all aspects of yoga practice, including mantra, breath practices, meditation, and more.
To learn more, visit here.
Read more from Carmela Lacey
Carmela Lacey, Yoga Teacher, Movement Educator, Wellness Advocate
Carmela is a highly regarded yoga and movement educator with over 25 years of teaching experience. As the founder of Yoga Rhyth’OM, she combines traditional yogic philosophy with modern movement science to create transformative experiences for her students. Her work spans yoga teacher trainings, women's wellness retreats, and educational programs/classes focused on functional movement, breathwork, and cyclical living. Known for her grounded wisdom and heartfelt teaching style, Carmela empowers others to move with awareness, age with grace, and live in rhythm with nature. Learn more about her offerings and articles through her Brainz profile.
References:
Porges, S. (Polyvagal Theory)
Vocalisation and vagal tone
Sound and prosody influence emotional regulation
Benson & Proctor (Relaxation Response)
Repetitive sounds reduce stress hormones
Mantra comparable to meditation in reducing sympathetic dominance
Goldsby et al. (2017)
Kirtan Kriya meditation linked to improved mood and reduced anxiety
Brewer et al. (2011)
Reduced activity in the Default Mode Network through repetitive meditative practices
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