What Is Prana?
Before we can understand pranayama, we need to understand prana. In yogic philosophy, prana is the vital life-force that animates all living beings — not air itself, but the intelligence that rides on air. Ancient yogis observed that the quality and pattern of breathing is inseparably linked to the quality and pattern of mental activity. This is now confirmed by neuroscience: the brainstem's respiratory centres are directly linked to the limbic system (emotion) and the prefrontal cortex (reasoning).
Ayama means to extend or expand. Pranayama is therefore the expansion of the life-force through breath regulation.
The Core Practices
Nadi Shodhana (Alternate Nostril Breathing)
The nose is not a symmetric organ. The right nostril tends to activate the sympathetic nervous system; the left nostril the parasympathetic. Alternating between them through Nadi Shodhana balances both hemispheres of the brain and both branches of the nervous system.
How to practise: Using the right hand, close the right nostril with the thumb. Inhale through the left. Close the left nostril with the ring finger; release the thumb; exhale through the right. Inhale through the right. Close the right; exhale through the left. This is one round. Begin with 5 rounds; work toward 10–15.
Kapalabhati (Skull-Shining Breath)
A series of sharp, forceful exhalations driven by rapid contractions of the abdominal muscles, each followed by a passive inhalation. It is classified as a kriya (cleansing practice) rather than a pranayama, but is often grouped with breath practices.
Kapalabhati energises, clears the lungs of stale air, and strengthens the abdominal core. It is not suitable for those with hypertension, epilepsy, or in the first trimester of pregnancy.
Bhramari (Humming Bee Breath)
Inhale gently, then exhale while making a low humming sound with the lips closed. The vibration directly stimulates the vagus nerve and triggers the release of nitric oxide in the nasal sinuses, which relaxes blood vessels and improves oxygen delivery.
Even 5 minutes of Bhramari before sleep is clinically documented to improve sleep quality and reduce pre-sleep anxiety.
Ujjayi (Victorious Breath / Ocean Breath)
A gentle constriction of the glottis (back of the throat) during breathing creates a soft, oceanic sound. Ujjayi is used throughout Vinyasa and Ashtanga yoga to create internal heat, regulate pace, and maintain the meditative quality of movement.
Viloma (Against the Grain / Interrupted Breath)
Viloma involves pausing the breath in stages — either during inhalation or exhalation. Interrupted inhalation is energising; interrupted exhalation is calming. These are advanced practices best learned directly with a teacher.
The Four Phases of Breath
Classical pranayama works with four phases: 1. Puraka — inhalation 2. Antara Kumbhaka — internal retention (after inhale) 3. Rechaka — exhalation 4. Bahya Kumbhaka — external retention (after exhale)
Kumbhaka (retention) is where much of pranayama's potency is said to reside. It dramatically increases carbon dioxide tolerance, stimulates the respiratory centres, and, in the yogic framework, allows prana to consolidate before it disperses.
Starting a Pranayama Practice
If you are new to pranayama, begin with simple awareness: - Sit comfortably with a straight spine for 5 minutes - Observe the natural breath without controlling it - Notice where in the body you feel the breath most clearly - Gradually invite the breath to slow and deepen
Introduce formal practices one at a time. Work with Nadi Shodhana for two weeks before adding Kapalabhati. Let each practice settle before moving to the next. The nervous system responds to subtlety, not force.