What is pooja and what does it typically involve?

Pooja (also spelled puja) is the Hindu devotional practice of worship, performed daily in most observant Hindu households and at temples throughout India and the diaspora. A traditional daily pooja typically involves: cleaning the altar space; lighting a diya (oil lamp) or candle; offering incense (agarbatti); ringing a bell (ghanta); offering flowers, fruit, sweets, or food to the deity; pouring water or milk; chanting or reciting prayers, mantras, or slokas; and concluding with aarti — the waving of a flame before the deity while chanting. The practice is typically performed in the morning before the day's activities begin, though evening pooja is also common. Different deities have specific practices, mantras, and offerings associated with them, and practices vary significantly across regional Hindu traditions.

What does research say about the effects of lighting a diya or candle in meditation?

Visual attention to a flame — a practice called trataka in yoga, which involves fixed gazing at a steady flame — has documented neurological effects. The steady, warm frequency of candlelight activates the parasympathetic nervous system through the visual cortex's response to low-frequency flickering light. Research on light therapy and its effects on the nervous system suggests that warm-frequency light sources (in the amber-red spectrum, characteristic of fire) reduce cortisol output and promote relaxation compared to blue-spectrum light. The practice of focusing single-pointed attention on the diya flame is also a form of directed concentration (dharana) that quiets the default mode network — the brain network associated with mind-wandering, rumination, and self-referential thought — producing the characteristic stillness of meditation.

What does the bell ringing in pooja do neurologically?

The traditional instruction that a bell should be rung at the beginning of pooja to mark the transition from ordinary consciousness to ritual space has a direct neurological correlate: the bell's sound is a strong startle stimulus that resets the nervous system's attentional state. Research on the orienting response — the automatic redirection of attention toward a novel stimulus — shows that a clear, sustained tone produces a brief spike of attentional focus followed by a rapid shift to a more open, present state. This is why wind chimes, singing bowls, and Tibetan bells are used across contemplative traditions: the sound clears the mental residue of ordinary activity and creates a clean attentional slate for what follows. The ringing is not symbolic; it is a nervous system interrupt.

What does incense do in a ritual context?

Olfactory stimuli have a direct pathway to the limbic system — the brain's emotional and memory network — that bypasses the thalamic filtering that other sensory information passes through. This means that scent reaches the amygdala and hippocampus more directly and quickly than visual or auditory stimuli, which is why scent is so strongly associated with memory and emotional state. In a ritual context, specific incense fragrances — used consistently in the same ritual — become conditioned stimuli: through repeated pairing with the meditative or devotional state of the ritual, they eventually begin to induce that state automatically when encountered. This is the neurological basis for the traditional instruction to use consistent incense in a regular practice: the scent becomes a direct nervous system cue for the ritual state.

What is aarti and what does it do physiologically?

Aarti is the concluding ritual in most Hindu poojas, in which a lamp or flame is waved in a circular pattern before the deity while devotees sing or chant a specific song. The term derives from the Sanskrit aa + rati, meaning 'in front of' in a sense that implies the complete removal of darkness (ignorance and obstacles) through the light of the divine. Physiologically, aarti is notable for several elements: the sustained group vocalization produces collective vagal activation (research on group chanting and collective heart rate coherence shows synchronization effects across participants); the circular motion of the flame creates a moving visual focal point that activates smooth pursuit eye movements, which are associated with parasympathetic activation and the reduction of amygdala reactivity; and the completion of the ritual sequence provides a clear endpoint that signals to the nervous system that the regulated state of the practice is complete before returning to ordinary activity.

What Pooja Is Really Doing to Your Nervous System

The neuroscience of the Hindu daily ritual — and why the sequence of a traditional pooja is a precisely designed nervous system regulation protocol.

Nikita Datar

Author7 September 20265 min read

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What this article covers: What each traditional element of Hindu pooja — the diya, the bell, the incense, the mantra, the aarti — is doing to the nervous system, through documented neurological mechanisms.

The research: Polyvagal theory (Stephen Porges, Indiana University, on the ventral vagal system and social engagement), trataka and single-pointed attention research, olfactory pathway research (limbic system direct access), research on group vocalization and heart rate coherence, the neurological effects of specific ritual elements.

Key points: Each element of a traditional pooja targets a specific nervous system pathway: the diya activates the parasympathetic through visual attention and warm-spectrum light; the bell resets the attentional state through the orienting response; the incense creates conditioned nervous system cuing through the olfactory-limbic pathway; mantra activates the vagus nerve through vocalization; aarti produces group vagal synchronization and clear ritual closure.

The takeaway: Pooja is a multi-sensory, multi-pathway nervous system regulation protocol that has been refined over centuries of practice. The neuroscience is catching up to what the tradition has known.

There is a common experience among people who grew up with Hindu household practice and then left it for a period of their lives: returning to pooja in adulthood, even after years away, produces a felt shift in the body that is difficult to describe. A settling. A coming-back-to. Something that is recognizable before it is analyzed.

The shift is real, and it has a neurological basis.

The Architecture of a Pooja

A traditional pooja is not a random collection of religious gestures. It is a sequence, performed in a specific order, that targets different nervous system states in a progression from ordinary waking consciousness to deep presence, and then back to ordinary life with that presence carried forward.

Each element has a function. None of them is arbitrary.

The Diya: Visual Attention and Parasympathetic Activation

The diya — the small oil lamp at the center of the altar — is lit first. The traditional instruction to clean and prepare the space before lighting the diya is the preparation for what the diya will do: the clean, ordered space reduces environmental distraction; the lamp provides a focal point.

Gazing at a steady flame — trataka, in the yogic tradition — activates the parasympathetic nervous system through two mechanisms. The warm-spectrum light of the flame (amber, not blue) reduces cortisol output. And the act of sustained, single-pointed visual attention quiets the default mode network — the brain network associated with mind-wandering, worry, and rumination. The person gazing at the diya is doing the same thing a meditator is doing, through the visual channel.

The Bell: Attentional Reset

The bell is rung at the beginning of the pooja. Its traditional function is to invite the deity's attention and to mark the beginning of sacred space. Its neurological function is the orienting response: the strong, clear, sustained tone of a bell produces a brief attentional spike followed by a shift to an open, present attentional state. The mind-chatter of the ordinary day is briefly interrupted. The slate clears.

This is why singing bowls, Tibetan bells, and wind chimes are used across contemplative traditions that have no contact with each other: the neurological mechanism is universal. The bell is a nervous system interrupt, used at the transition into ritual.

The Incense: Conditioning the Nervous System State

The olfactory pathway is the only sensory pathway that bypasses the thalamic gatekeeper and goes directly to the limbic system — the brain's emotional and memory network. This is why scent produces such immediate and powerful emotional responses, and why scent memory is the most vivid and involuntary of all sensory memories.

In a ritual context, this direct pathway is used deliberately. The consistent use of the same incense fragrance in the same practice, across many repetitions, creates a conditioned response: through pairing, the scent becomes a direct neural cue for the ritual state. The nervous system learns: when this smell arrives, this state follows. Eventually, the smell alone begins to shift the nervous system toward the ritual state before the practice has fully begun.

Mantra and Aarti: Vagal Activation and Closure

Mantra chanting activates the vagus nerve through vocalization — specifically through the laryngeal branch, which governs both voice production and vagal tone. The extended breath required for sustained chanting additionally activates the parasympathetic nervous system through its cardiac branch. Mantra is not only a cognitive practice; it is a somatic one.

The aarti — the waving of a flame before the deity while chanting — combines several elements: the group vocalization, which produces collective vagal activation and heart rate synchronization across participants; the moving flame, which activates smooth pursuit eye movements associated with parasympathetic activation and reduced amygdala reactivity (the same mechanism underlying EMDR therapy); and the musical structure of the aarti song, which provides a clear emotional arc from opening to resolution.

The resolution of the aarti is also a ritual closure — a clear signal to the nervous system that the practice is complete before ordinary activity resumes. This transition is as important neurologically as the beginning: a clear close to the regulated state allows the nervous system to carry that regulation forward rather than leaving it abruptly.

The pooja sequence moves from attentional reset (bell) to single-pointed presence (diya) to scent-conditioning (incense) to devotional vocal engagement (mantra) to communal closure (aarti). The sequence is a coherent nervous system protocol, not a collection of separate religious gestures.

This week on The Elysian Press (paid): The Daily Practice Design — building a personal ritual sequence using the neurological principles behind pooja, even without a traditional Hindu practice background. Subscribe to read →

Keep reading: → Setting Intention Is Not Wishful Thinking: The Neuroscience Behind Why Ritual Works — on the RAS programming and priming effects of intentional ritual → The Psychology of Lakshmi: Why Abundance Requires a Nervous System That Feels Safe Enough to Receive It — on the internal conditions the pooja practice is creating

This post connects to You Are the Love You Seek — on the inner relationship that determines what practices can reach — and The Body Keeps the Score — on how the body participates in both stored patterns and their transformation.

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Frequently Asked Questions

What is pooja and what does it typically involve?: Pooja (also spelled puja) is the Hindu devotional practice of worship, performed daily in most observant Hindu households and at temples throughout India and the diaspora. A traditional daily pooja typically involves: cleaning the altar space; lighting a diya (oil lamp) or candle; offering incense (agarbatti); ringing a bell (ghanta); offering flowers, fruit, sweets, or food to the deity; pouring water or milk; chanting or reciting prayers, mantras, or slokas; and concluding with aarti — the waving of a flame before the deity while chanting. The practice is typically performed in the morning before the day's activities begin, though evening pooja is also common. Different deities have specific practices, mantras, and offerings associated with them, and practices vary significantly across regional Hindu traditions.
What does research say about the effects of lighting a diya or candle in meditation?: Visual attention to a flame — a practice called trataka in yoga, which involves fixed gazing at a steady flame — has documented neurological effects. The steady, warm frequency of candlelight activates the parasympathetic nervous system through the visual cortex's response to low-frequency flickering light. Research on light therapy and its effects on the nervous system suggests that warm-frequency light sources (in the amber-red spectrum, characteristic of fire) reduce cortisol output and promote relaxation compared to blue-spectrum light. The practice of focusing single-pointed attention on the diya flame is also a form of directed concentration (dharana) that quiets the default mode network — the brain network associated with mind-wandering, rumination, and self-referential thought — producing the characteristic stillness of meditation.
What does the bell ringing in pooja do neurologically?: The traditional instruction that a bell should be rung at the beginning of pooja to mark the transition from ordinary consciousness to ritual space has a direct neurological correlate: the bell's sound is a strong startle stimulus that resets the nervous system's attentional state. Research on the orienting response — the automatic redirection of attention toward a novel stimulus — shows that a clear, sustained tone produces a brief spike of attentional focus followed by a rapid shift to a more open, present state. This is why wind chimes, singing bowls, and Tibetan bells are used across contemplative traditions: the sound clears the mental residue of ordinary activity and creates a clean attentional slate for what follows. The ringing is not symbolic; it is a nervous system interrupt.
What does incense do in a ritual context?: Olfactory stimuli have a direct pathway to the limbic system — the brain's emotional and memory network — that bypasses the thalamic filtering that other sensory information passes through. This means that scent reaches the amygdala and hippocampus more directly and quickly than visual or auditory stimuli, which is why scent is so strongly associated with memory and emotional state. In a ritual context, specific incense fragrances — used consistently in the same ritual — become conditioned stimuli: through repeated pairing with the meditative or devotional state of the ritual, they eventually begin to induce that state automatically when encountered. This is the neurological basis for the traditional instruction to use consistent incense in a regular practice: the scent becomes a direct nervous system cue for the ritual state.
What is aarti and what does it do physiologically?: Aarti is the concluding ritual in most Hindu poojas, in which a lamp or flame is waved in a circular pattern before the deity while devotees sing or chant a specific song. The term derives from the Sanskrit aa + rati, meaning 'in front of' in a sense that implies the complete removal of darkness (ignorance and obstacles) through the light of the divine. Physiologically, aarti is notable for several elements: the sustained group vocalization produces collective vagal activation (research on group chanting and collective heart rate coherence shows synchronization effects across participants); the circular motion of the flame creates a moving visual focal point that activates smooth pursuit eye movements, which are associated with parasympathetic activation and the reduction of amygdala reactivity; and the completion of the ritual sequence provides a clear endpoint that signals to the nervous system that the regulated state of the practice is complete before returning to ordinary activity.

Recommended resources

A few relevant resources I would actually recommend for this topic.

You Are the Love You Seek — Nikita Datar — On the inner relationship that shapes what practices can reach
Born to Break the Cycle — Nikita Datar — On the inherited patterns that daily practice can begin to shift
The Body Keeps the Score — Bessel van der Kolk — On how the body participates in stored patterns and their transformation

Disclosure: This post contains affiliate links. If you click a link and make a purchase, I may earn a small commission at no extra cost to you. As an Amazon Associate I earn from qualifying purchases.

poojaHindu ritualneurosciencenervous systemritualpolyvagal theorypsychologyNikita DatarThe Elysian PressYou Are the Love You Seek

I wrote more about this in You Are the Love You Seek — 365 Days of Self-Love, Healing, and Becoming.

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