धृत्या यया धारयते मनः प्राण इन्द्रिय क्रियाः
योगेन अव्यभिचारिण्या धृतिः सा पार्थ सात्त्विकी

धृत्या यया धारयते मनःप्राणेन्द्रियक्रियाः ।
योगेनाव्यभिचारिण्या धृतिः सा पार्थ सात्त्विकी ॥१८:३३॥

dhrityaa yayaa dhaarayate manahpraanendriyakriyaah
yogenaavyabhichaarinyaa dhritih saa paartha saattwikee ||18:33||

dhrityaa yayaa dhaarayate manah praana indriya kriyaah
yogena avyabhichaarinyaa dhritih saa paartha saattwikee

Purport By which resolution the mind, breath and senses are supported by union with non-transgression, that resolution is Saatwik (having the characteristics of truth, essence or eternity), O Paartha (Arjun).

धृत्या (dhrityaa) -- by resolution; by determination
यया (yayaa) -- by which
धारयते (dhaarayate) -- held; supported; sustained
मनः (manah) -- mind; thought
प्राण (praana) -- life; breath
इन्द्रिय (indriya) -- senses
क्रियाः (kriyaah) -- activities
योगेन (yogena) -- by Yog; by union
अव्यभिचारिण्या (avyabhichaarinyaa) -- without deviation or transgression
धृतिः (dhritih) -- resolution; determination
सा (saa) -- she; that
पार्थ (paartha) -- Paartha; Arjun
सात्त्विकी (saattwikee) -- quality or character of truthfulness, essence or eternity