न हि ज्ञानेन सदृशं पवित्रमिह विद्यते।
तत्स्वयं योगसंसिद्धः कालेनात्मनि विन्दति।।4.38।।
4.38 Verily, there is no purifier in this world like knowledge. He who is perfected in Yoga finds it in the Self in time.
4.38 Hi, indeed; na vidyate, there is nothing; pavitram, purifying, sanctifying; iha, here; sadrsam, comparable; jnanena, to Knowledge. Yoga-samsiddhah, one who has become perfected, who as attained fitness through yoga-the seeker after Liberation who has become samsiddhah, purified, qualified; yogena, through the yoga of Karma and the yoga of concentration-; kalena, after a long time; vindati, realizes, i.e. attains; tat, That, Knowledge; verily svayam, by himself; atmani, in his own heart. That means by which Knowledge is invariably attained is being taught:
Na hi jnaanena sadrisham pavitram iha vidyate; Tat swayam yogasamsiddhah kaalenaatmani vindati.
na—not; hi—certainly; jñānena—with divine knowledge; sadṛiśham—like; pavitram—pure; iha—in this world; vidyate—exists; tat—that; svayam—oneself; yoga—practice of yog; sansiddhaḥ—he who has attained perfection; kālena—in course of time; ātmani—wihtin the heart; vindati—finds