Nada Yantra (Universe of Sound). It involves the path of becoming aware of the inner sound. Nada Yoga is a real treasure, a mysterious, mystical path to achieve inner realization up to Liberation into the Rainbow body, transmitted in the chain of siddha succession. By meditating on the inner sound, the outer sounds of the five elements, the yogi discovers the true source of any sound - this is the primordial space of non-dual awareness. Working with the unity of manifesting sounds and contemplative presence, the yogi, through the power of contemplation, takes control of the pranas in his body until the highest Liberation.