राजविद्या राजगुह्यं पवित्रमिदमुत्तमम् |\nप्रत्यक्षावगमं धर्म्यं सुसुखं कर्तुमव्ययम् ||९-२||
rājavidyā rājaguhyaṃ pavitramidamuttamam .\npratyakṣāvagamaṃ dharmyaṃ susukhaṃ kartumavyayam ||9-2||
This knowledge is the king of sciences and the most profound of all secrets.  It purifies those who hear it.  It is directly realizable, in accordance with dharma, easy to practice, and everlasting in effect.