सिद्धिं प्राप्तो यथा ब्रह्म तथाप्नोति निबोध मे।
समासेनैव कौन्तेय निष्ठा ज्ञानस्य या परा।।18.50।।
18.50 Understand for certain from Me, in brief indeed, O son of Kunti, that process by which one who has achieved success attains Brahman, which is the supreme consummation of Knowledge.
18.50 One who has attained perfection, viz., one who has attained perfection in meditation generated by the Karma Yoga performed day after day till death - how, in what way, he attains the brahman, learn this from Me in brief. It is the same Brahman who is described as the supreme consummation of knowledge. The meaning is that the self is the supreme consummation, the supreme end, of knowledge which is of the nature of meditation.
Siddhim praapto yathaa brahma tathaapnoti nibodha me; Samaasenaiva kaunteya nishthaa jnaanasya yaa paraa.
siddhim—perfection; prāptaḥ—attained; yathā—how; brahma—Brahman; tathā—also; āpnoti—attain; nibodha—hear; me—from me; samāsena—briefly; eva—indeed; kaunteya—Arjun, the son of Kunti; niṣhṭhā—firmly fixed; jñānasya—of knowledge; yā—which; parā—transcendental