Chapter IX · Śloka 2
राजविद्या राजगुह्यं पवित्रमिदमुत्तमम् ।
प्रत्यक्षावगमं धर्म्यं सुसुखं कर्तुमव्ययम् ॥
rāja-vidyā rāja-guhyaṃ pavitram idam uttamam |
pratyakṣāvagamaṃ dharmyaṃ su-sukhaṃ kartum avyayam ||
This is the king of knowledge, the king of secrets — supremely pure, directly perceivable, in accord with righteousness, easy to practice, and imperishable.
Six qualities crown this teaching: it is sovereign (rāja), purifying, directly experienceable without inference, dharmic, easy to live, and undecaying. No other knowledge surpasses it.