Attaining Samadhi through sound is Nada Yoga.
Samadhi is the experience of pure consciousness that transcends the mind and body. On the path to experiencing pure consciousness, an individual discovers the wisdom of the body, emotional and cognitive intelligence, the union of body and mind (atman or soul), and the expansion of Atman into Nada Braham or Shabd Braham (God of Sound or Word).
Beyond the experience of Nada-Brahman comes the realization of the Nirgun Brahman or pure consciousness.
Nada means the flow of sound and Yoga means Union. Nada Yoga is the process of the union of the individual mind with cosmic consciousness through the flow of sounds.
When the river of consciousness is impeded by the ego, Nada or special sounds can remove the obstruction allowing the river of individual consciousness to unite with its source, the ocean of pure consciousness.
Nada is also called Shabd or word and is produced either by striking two objects known as Ahat Nad or without striking two objects which is called Anahat Nad.
The Anahat sound can be heard at the Anahat or heart chakra. Anahat Nada is the sound of Aum and is the primal and uncreated vibration through which the universe was born. All other sounds emerge from Aum. Prakriti is energy, energy is vibration and all vibrations are sound.
From human DNA to bacteria and worms, from the earth to solar systems and distant galaxies, and from the newborn stars to the black holes, everything has its own sound and music.
The whole universe hums with its own rhythm and frequency. And when we can hum with the frequency of the universe, we become one with it and are transformed into a Nada Yogi.
In Patanjali’s Yoga, Aum represents Ishwara or Sagun Braham (universal consciousness with attributes). Because all other sounds emerged and are an extension of Aum, a Nada Yogi can make any sound a tool to reach the primal sound Aum. And realizes Sagun Braham or Ishwara and then the pure consciousness of Nirgun Braham.
In Semitic tradition, the Bible says ‘In the beginning was the Word, and the Word was with God, and the Word was God.’
On the path of Nada Yoga, the body is healed, the mind recovers its balance and the person becomes a fully functional individual, living with a sense of well-being. In this sense Nada Yoga works as medicine and therapy, helping a person to lead a healthy, happy and balanced life in the world.
Sound or Nada meditation is the most powerful path to self-realization.
The reason being that out of the five elements (Panchmahabhuta) which form the microcosm of the body and the macrocosm of the universe, the element of space is the most primal.
Space is connected with the ear, and the ear is the receptacle to sound. In that way sound is the primal experience of all; in comparison to smell, taste, vision, and touch. It is also the most accurate and more precise than the others.
During the dying process, the sense of hearing is the last one to disappear.
That is why in various spiritual traditions around the world when someone is dying, scriptures are read, and sacred mantras are chanted. This brings peace to the dying person.
In Tibetan Buddhism ‘The book of Living and Dying’ is an example of such a tradition. ‘The Book of Living and Dying’ contains concrete and comprehensive instructions that guide a person to die peacefully, attain freedom or have a good rebirth.
In our world, speech and language have lost their aesthetic and sensual qualities and have become more technical, dry, and intellectual.
Words like love, spirit, energy, passion, and consciousness are repeated endlessly and mechanically. They do not have an impact on the body and mind. They don’t relate to what they represent and don’t stir our feelings to bring change and transformation.
Nada Yoga helps us in discovering the sensual and spiritual qualities of sounds, language, and words. And connects them to the living and non-living things and events which they represent bringing richness to life.
form Nada Yoga school official website.