Kaṭha Upaniṣad 3

3

oṃ saha nāv avatu / saha nau bhunaktu / saha vīryaṃ karavāvahai // tejasvi nāvadhītamastu mā vidviṣāvahai // oṃ śāntiḥ śāntiḥ śāntiḥ //

*** those who are fully competent to acquire knowledge have been stated. The whole subject matter of knowledge has also been stated to be the highest Brahman, the internal atman of all. The fruit of this knowledge has also been stated to be the thorough release from the bondage of samsara consisting in the attainment of the Brahman. The connection has also been stated by the enunciation of this result. Therefore these chapters, by making as clear as the apple in the hand, the knowledge (persons competent to acquire which, the subject matter of which, the results achieved by which, and the connection with which have been explained) also indicate the persons entitled to study them, their subject matter, their results and their connection. We shall, therefore, proceed to comment upon them to the best of our understanding. Here the anecdote is for the purpose of eulogising knowledge.