Here is the Sanskrit anuvad, Hindi anuvad, and English translation of Moksha-Sanyasa Yoga Chapter 18, Verse 18.33.
Sanskrit
धृत्या यया धारयते मनःप्राणेन्द्रियक्रियाः । योगेनाव्यभिचारिण्या धृतिः सा पार्थ सात्त्विकी ॥ १८.३३ ॥
Hindi
हे पार्थ ! जिस अव्यभिचारिणी धारण शक्त्ति से मनुष्य ध्यान योग के द्वारा मन, प्राण और इन्द्रियों की क्रियाओं को धारण करता है ; वह धृति सात्विकी है ।
English
O Partha, while practising Yoga and full concentration on Me (who resides in the soul of every being), unbreakable determination and stability of mind is developed and sustained. The practice of YOGA harmoniously balances the mind and a being’s every breath of life. This pure STEADINESS and stability is known to be found in those who are of the SAATVIC- natured.