Verse 17

अवासनं स्थिरं प्रोक्तं मनोध्यानं तदेव तु ।स एव केवलीभावः शान्ततैव च सा सदा

In plain words

The mind without vāsanā is called steady, and that indeed is the dhyāna of the mind; that alone is kevalībhāva, and that, always, is tranquility itself.