II.1 Having become competent in practicing asanas, with the senses under control and following an appropriate, moderate diet, the yoga should then begin practicing pranayama as instructed. by the teacher.

II.2 When the breath is disturbed, it shows that the mind is unsteady. When the breath becomes calm, the mind is calm, and the yogi becomes strong and steady. Therefore, one should practice restraining the breath.

II.3 Life exits as long as there is prana in the body. When prana leaves the body, there is death. Therefore, one should practice restraining the breath.

II.4 When the nadis (internal channels) are full of impurities, the breath cannot flow to the shushumna (central channel). How can the goal of samadhi be attained in this state?

II.5 Only when all the nadis are purified, will the yogi be able to fully control the withdrawal of the senses caused by the flow of prana.

II.6 Therefore, practice pranayama every day with a sattvic (pure) mind in order to purify the shushuma nadi.

II.7  Alternate Nostril Breathing - Sitting in padmasana inhale through the left. Hold the breath as long as possible before exhaling through the right.

II.8 In the same way, inhale slowly through the right. Practice kumbhaka (breath retention) before exhaling through the left.

II.9 Inhaling through the same nostril you exhaled out of, hold the breath for as long as possible before exhaling slowly through the other nostril.

II.10 When prana is inhaled through the ida (left) nostril, it should be exhaled through the pingala (right) after a period of retention. When prana is inhaled through the pingala (right), it should be exhaled through the ida (left) after a period of retention. For those who do this and follow the yamas, the nadis are purified within three months.

II.11 Practice kumbhaka (breath retention) four times a day, in the early morning, noon, evening, and midnight, increasing gradually until it has been done 80 times.

II.12 In the beginning, there is sweating, in the middle, trembling, and in the highest, the body becomes grounded and transcendent like a tree. Therefore, one should practice restraining the breath.

II.13 Any perspiration that arises from pranayama should be massaged back into the skin, causing the body to become strong and light.