Verse 46

अभ्यासेन परिस्पन्दे प्राणानां क्षयमागते ।मनः प्रशममायाति निर्वाणमवशिष्यते

In plain words

Through practice, when the vibration of the prāṇas has come to its end, the mind attains stillness -- and nirvāṇa alone remains.