By Swami Harshananda
Sometimes transliterated as: Anahatanada, AnAhatanAda, Anaahatanaada
Anāhatanāda literally means ‘sound produced without beating’.
When a yogi practices prāṇāyāma and achieves purification of the nāḍīs, he starts hearing melodious sounds of praṇava or Oṃkāra. Since these sounds are generated without any beating (āhati) of two objects they are called ‘anāhata-nāda.’ The sound is normally heard through the right ear whether open or closed. However, it is more distinct when the ears are kept closed.
- The Concise Encyclopedia of Hinduism, Swami Harshananda, Ram Krishna Math, Bangalore