Pranayama

Pranayama is breathing exercise. It helps to meditate to increase vital capacity, energize, exercise the lungs and the respiratory muscles, oxygenates and purifies the bloodstream, removes phlegm, cleanse the sinuses and the nadir or nerve channels, smooth and tones the nervous system, improves thoracic mobility and broaden the chest, improves digestion, massages the abdominal viscera, and calms and concentrates the mind.

The possible objectives are

1. Establishing healthful habits of breathing.
2. Moment of need like alternate nostril breath to relax and vitalize to energize or give courage.
3. Equanimity and serenity that clam temper or mental firmness.
4. Preparation for Yoga meditation (Raja Yoga)
5. As a technique in the Yoga of Latent Energies (Laya Kundalini Yoga) 
6. Breathe therapy.
7. Performance of Extraordinary Feats.