Udana governs the neck & head, activating all the sensory receptors such as eyes, tongue, nose, ears. Udana also harmonize & activates the limbs and all their associated muscles, ligaments, nerves & joints. Its is responsible for erect posture of body, sensory awareness & the ability to respond to the outside world. It is with the assistance of Udana Prana that the Astral body separates itself from the physical body. A strong Udana Prana eases the phase of death.

With the control of Udana Prana, the body becomes very light and one may gain the ability to levitate. When Udana Prana is in our control, external obstacles such as water, earth or stones no longer obstruct us. Intense practice of the Yoga breath exercises also gives the possibility of walking on water, or even floating in the air. Fakirs who sit or lie on a bed of nails possess the ability to control their Udana Prana. Yogis who live in the forest and remain unaffected by heat, cold, thorns and insects, etc., are protected through the control of Udana Prana. Udana Prana is activated by the practice of Ujjayi Pranayama, Bhramari Pranayama, as well as Viparitakarani Mudra.