How he who has attained perfection (siddhi), attains Brahman, learn from Me, Only in brief, O son of Kunti (Kaunteya), which is the supreme state (niṣṭhā) of knowledge (jñāna).
Understand in summary from me how when he achieves success one attains the infinite spirit, the highest state of knowledge.
(50) Perfection found, now learn from Me how you may reach Brahman too: [this I will tell you] briefly; it is wisdom's highest borne.
18.50 Understand for certain from Me, in brief indeed, O son of Kuntī, that process by which one who has achieved success attains Brahman, which is the supreme consummation of Knowledge.
18.50 Learn from me in brief, O Arjuna, how, one who has attained perfection, attains the brahman (or the self), who is the supreme consummation of knowledge.
18.50 Learn from Me in brief, O Arjuna, how he who has attained perfection reaches Brahman (the Eternal), that supreme state of knowledge.