> Even if the reader cannot rise to the cosmic vision of the Seer, or > rather to the cosmic hearing of the Rishi, it would be possible for > him to enter with the aid of his imagination into a region where > an echo of the cosmic "murmur" would be audible to him. How > rich is the wealth of the cosmic murmur! It is the subtle spiritual > sound that rises from the Universe and reaches the ear of the > Cosmic Being. I think this is the Anahata sound, right? Book 2, Canto 14 As one drawn to his lost spiritual home Feels now the closeness of a waiting love, Into a passage dim and tremulous That clasped him in from day and night's pursuit, He travelled led by a mysterious sound. A murmur, multitudinous and lone, All sounds it was in turn, yet still the same. Ramakrishna discusses it in the Gospel in various places. PRANKRISHNA (to the Master): "Sir, what is the Anahata sound?" MASTER: "It is a spontaneous sound constantly going on by itself. It is the sound of the Pranava, Om. It originates in the Supreme Brahman and is heard by yogis. People immersed in worldliness do not hear it. A yogi alone knows that this sound originates both from his navel and from the Supreme Brahman resting on the Ocean of Milk."