Uddiyana Bandha (Abdominal Retraction Lock)
Atha uddiyanabandhah
Baddho yena sushumnayam pranastuddiyate yatah/
Tasmad uddiyanakhyoa yam yoghibhih samudahrtah/
Uddiyana bandha is so-called by the yogis because through its practice the prana (is concentrated at one point and) rises through sushumna. (Chapter -3, Verse 55).
Uddinam kurute yasmadavisrantam mahakhaghah/
Uddiyanam tadeva syattatra bandho abhidhiyate//
The bandha explained is called the rising or flying bandha, because through its practice, the great bird Shakti flies upward with ease and comfortably. (Chapter -3, Verse 56).
Udare paschimam tanam nabherurdhvam cha karayet /
Uddiyano hyasau bandho mrtyumatangghakesari//
Sucking the abdomen back in and making the navel rise is called Uddiyana Bandha. It is the lion which conquers the elephant death. (Chapter -3, Verse 57).