Sārathi

Chapter 9: Raja Vidya Yoga, verse 2

राजविद्या राजगुह्यं पवित्रमिदमुत्तमम्।
प्रत्यक्षावगमं धर्म्यं सुसुखं कर्तुमव्ययम् ॥

Say itrāja-vidyā rāja-guhyaṁ pavitram idam uttamam
pratyakṣhāvagamaṁ dharmyaṁ su-sukhaṁ kartum avyayam

Practice reciting

Translation

This is the royal science, the royal secret, the supreme purifier, realizable by direct intuitive knowledge, according to righteousness, very easy to perform and imperishable.

Swami Sivananda

Classical commentariesFor deeper study. Most are in the original Sanskrit.

Advaita

Non-dual: the self and the absolute are one.

Vishishtadvaita

Qualified non-dual: souls are real parts of the divine.

Dvaita

Dual: the soul and God are eternally distinct.

Shuddhadvaita

Pure non-dual, centred on grace and devotion.

Kashmir Shaivism

The Gita read through Trika Shaiva philosophy.

Modern teachers

20th-century teachers writing for today's readers.