The belief that one truth dismisses all other beliefs, in the context of yoga, is called a solar attitude, which means that prana flows predominantly through the right central (pingala) channel. In comparison, a lunar attitude, when prana flows predominantly through the left central (ida) channel, means that one surrenders to the belief that all truths are equal.
"Hatha Yoga Pradipika," states that "when the nadis are full of impurities, the breath does not enter the middle nadi (sushumna)." Therefore, it is important that the yogi purifies the pingala and ida nadi daily. The yogi can do this by observing the yamas and niyamas and by practicing alternate nostril breathing (anuloma viloma).