It is the chief science and the chief mystery; it is the chief means of purification. It is consistent with the sacred laws, easy to practice, directly apprehensible, and imperishable.
राजविद्या राजगुह्यं पवित्रमिदमुत्तमम्। प्रत्यक्षावगमं धर्म्यं सुसुखं कर्तुमव्ययम्॥