The planetary movements and cycles of the moon affect the dominant flow of breath in each nostril. Swara yoga helps to prevent physical and psychological problems by checking and controlling the nostril dominance in sync with the moon cycles and planetary movement. We can apply Swara Yoga

To win friends, overcome enemies
Gain wealth, prosperity, popularity
Achieve sound physical, mental and spiritual health
For yoga and meditation

Acts to be performed when left swara is active

All auspicious acts
Purchase jewellery, clothes, etc
Treat incurable disease
Undertake journey

Acts to be performed when right swara is active

Eating
Destroying enemies
Work requiring extreme dynamism
Physical Work

Types of Swara Yoga

Ida nadi or left swara
Pingale nadi or right swara
Sushumna or third swara

Left Swara – This refers to the breath flow in the left nostril and is on the left side of the spinal cord. It represents the lunar energy.

Right Swara – This refers to the breath through the right nostril and represents the solar energy.

Third Swara ("Sushumna") – It represents Shiva. It is located at the center of the spinal cord. This swara is active when the left and right swara flow in unison.

Therapeutic Aspect of Swara Yoga

Various norms of swara yoga and dietary rules help in the prevention of diseases. Intake of meals during surya swara helps in digestion and avoids digestive disorder. There must be moderation in diet and observance of sequence while taking food i.e, sweet articles should be taken first, sour and saline in middle and pungent and astringent lastly. One must avoid intake of cold potency food articles when surya swara is active. This prevents digestive disorders and respiratory disorders. Taking bath during surya swara prevent common colds, arthritis, digestive disorders etc.