Verse 81

मध्यजिह्वे स्फारितास्ये मध्ये निक्षिप्य चेतनाम् ।होच्चारं मनसा कुर्वंस् ततः शान्ते प्रलीयते

In plain words

With the mouth opened wide and the tongue in the middle, cast awareness into the middle and utter ha with ; then you dissolve into peace.