This topic, O son, intended for your instruction, is the essence of all the Vedas. The truths expounded in it cannot be understood by the help of inference alone or by that of mere study of the scriptures. One must understand in himself by the help of faith.
रहस्यं सर्ववेदानामनैतिह्यमनागमम्। आत्मप्रत्ययिकं शास्त्रमिदं पुत्रानुशासनम्॥