3. Breathing through either nostril.
It is clear that the effect of some of the above practices is designed to produce a state of mind resembling the hypnotic trance. The Yogis attach much importance to the effect of breathing through one or the other nostril, and this is also the case with Hindus generally, as various rules concerning it are prescribed for the daily prayers of Brāhmans. To have both nostrils free and be breathing through them at the same time is not good, and one should not begin any business in this condition. If one is breathing only through the right nostril and the left is closed, the condition is propitious for the following actions: To eat and drink, as digestion will be quick; to fight; to bathe; to study and read; to ride on a horse; to work at one’s livelihood. A sick man should take medicine when he is breathing through his right nostril. To be breathing only through the left nostril is propitious for the following undertakings: To lay the foundations of a house and to take up residence in a new house; to put on new clothes; to sow seed; to do service or found a village; to make any purchase. The Jogis practise the art of breathing in this manner by stopping up their right and left nostril alternately with cotton-wool and breathing only through the other. If a man comes to a Brāhman to ask him whether some business or undertaking will succeed, the Brāhman breathes through his nostrils on to his hand; if the breath comes through the right nostril the omen is favourable and the answer yes; if through the left nostril the omen is unfavourable and the answer no.