Who visualised the Nada?
Brahma is said to have invoked the Nada, when he was born from the Naval of Vishnu and Madhu-Kaitabha the two demons were about to eat him up, but Brahma invoked the Yoga Nidra through Nada and was ‘Saved from being killed.’ Such is the force of Nada Yoga Vasistha, the preceptor of Lord Rama taught Nada Yoga to Shri Rama . Hence we have the Yoga Vasishta. Shesha was witness to the Primal Nada Yoga of Lord Brahma. He incarnated as Patanjali, and then, we have the Patanjala Yoga Sutras. These Sutras teach us the process and the follow-up of the Nada. A Yogi sits in Lotus Position (Padmasana), as lord Brahma taught this posture to Shesha , who was witness to that Nada. Shri Krishna made Arjuna to transcend and taught him the art of meditation and to be in total absorption in the Nada, as said in the Bhagavad Gita, which is the scripture of Yoga. A Yogi should be able to feel and see the past, present, and future when the Yogi is meditating upon AUM, or the Primal Nada. According to Tantri
