This is the royal knowledge (rājavidyā), the royal secret (rājaguhya), the supreme purifier. Understood by direct perception, endowed with duty (dharma), very easy to perform, and imperishable.
This science and mystery of kings is the supreme purifier, intuitive, true to duty, joyous to perform, unchanging.
(2) Science of kings, mystery of kings is this, distilling the purest essence, to the understanding evident, with righteousness enhanced—how easy to carry out! [Yet] it abides forever.
9.2 This is the Sovereign Knowledge, the Sovereign Profundity, the best sanctifier; directly realizable, righteous, very easy to practice and imperishable.
9.2 This is the royal science, royal mystery, the supreme purifier, It is realized by direct experience. It is in accord with Dharma, it is pleasant to practice and is abiding.
9.2 This is the kingly science, the kingly secret, the supreme purifier, realizable by direct intuitional knowledge, according to righteousness, very easy to perform and imperishable.