Verse 22

सुषुप्तवत्प्रशमितभाववृत्तिनास्थितं सदा जाग्रति येन चेतसा ।कलान्वितो विधुरिव यः सदा मुदानिषेव्यते मुक्त इतीह स स्मृतः

In plain words

He who, even in the waking state, ever abides with a mind whose movements of feeling have been stilled as in deep sleep; who, like the moon endowed with its digits, is ever attended with delight -- he, here, is remembered as 'liberated.'