Verse 18

तनुवासनमत्युच्चैः पदायोद्यतमुच्यते ।अवासनं मनो कर्तृपदं तस्मादवाप्यते

In plain words

The mind of thin vāsanā is said to be poised, straining toward the very highest station; from that, the mind without vāsanā -- the station of non-agency -- is attained.