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    अनाहते पात्रकर्णेऽभग्नशब्दे सरिद्रुते । शब्दब्रह्मणि निष्णातः परं ब्रह्माधिगच्छति ॥ ३८ ॥

    One, who is adept in listening to the unstruck sound in anahata, (which is) uninterrupted like a rushing river, attains the supreme state of Brahma by mastery of shabdabrahman, the form of Brahman as sound.