Nada Bindu Upanishad

Nada Bindu Upanishad That which is beyond these, (viz.,) Para-Brahman which is beyond (the above Matras), the pure, the all-pervading, beyond Kalas, the ever resplendent and the source of all Jyotis (light) should be known. When the mind goes beyond the organs and the Gunas and is absorbed, having no separate existence and no mental action, then (the Guru) should instruct him (as to his further course of development). That person always engaged in its contemplation and always absorbed in it should gradually leave off his body (or family) following the course of Yoga and avoiding all intercourse with society. When he comes to that stage when the sound of the great kettle-drum is being heard, he should try to distinguish only sounds more and more subtle. He may change his concentration from the gross sound to the subtle, or from the subtle to the gross, but he should not allow his mind to be diverted from them towards others. The mind having at first concentrated itself on any one sound fixes firmly to that and is absorbed in it. It (the mind) becoming insensible to the external impressions, becomes one with the sound as milk with water and then becomes rapidly absorbed in Chidakasa (the Akasa where Chit prevails). Being indifferent towards all objects, the Yogin having controlled his passions, should by continual practice concentrate his attention upon the sound which destroys the mind. Having abandoned all thoughts and being freed from all actions, he should always concentrate his attention on the sound and (then) his Chitta becomes absorbed in it. Being indifferent towards all objects, the Yogin having controlled his passions, should by continual practice concentrate his attention upon the sound which destroys the mind. Having abandoned all thoughts and being freed from all actions, he should always concentrate his attention on the sound and (then) his Chitta becomes absorbed in it. Just as the bee drinking the honey (alone) does not care for the odour, so the Chitta which is always absorbed in sound, does not long for sensual objects, as it is bound by the sweet smell of Nada and has abandoned its flitting nature. The serpent Chitta through listening to the Nada is entirely absorbed in it and becoming unconscious of everything concentrates itself on the sound. The sound serves the purpose of a sharp goad to control the maddened elephant - Chitta which roves in the pleasure-garden of the sensual objects. It serves the purpose of a snare for binding the deer - Chitta. It also serves the purpose of a shore to the ocean waves of Chitta. The sound proceeding from Pranava which is Brahman is of the nature of effulgence; the mind becomes absorbed in it; that is the supreme seat of Vishnu. The sound exists till there is the Akasic conception (Akasa-Sankalpa). Beyond this, is the (Asabda) soundless Para-Brahman which is Paramatman. The mind exists so long as there is sound, but with its (sound's cessation) there is the state called Unmani of Manas (viz., the state of being above the mind). This sound is absorbed in the Akshara (indestructible) and the soundless state is the supreme seat. The mind which along with Prana (Vayu) has (its) Karmic affinities destroyed by the constant concentration upon Nada is absorbed in the unstained One. There is no doubt of it. After that, he does not at any time hear the sounds of conch or Dundubhi (large kettle drum). The body in the state of Unmani is certainly like a log and does not feel heat or cold, joy or sorrow. The Yogin's Chitta having given up fame or disgrace is in Samadhi above the three states. Being freed from the waking and the sleeping states, he attains to his true state.. When the (spiritual) sight becomes fixed without any object to be seen, when the Vayu (Prana) becomes still without any effort, and when the Chitta becomes firm without any support, he becomes of the form of the internal sound of Brahma-Pranava.