Kaṭha Upaniṣad 5.13

5.13

nityo 'nityānāṃ cetanaś cetanānām eko bahūnāṃ yo vidadhāti kāmān /
tam ātmasthaṃ ye 'nupaśyanti dhīrās teṣaṃ śāntiḥ śāśvatī netareṣām //

12. The Inner Soul (_antarātman_) of all things, the One Controller,
Who makes his one form manifold—
The wise who perceive Him as standing in oneself,
They, and no others, have eternal happiness!
13. Him who is the constant among the inconstant, the intelligent
among intelligences,
The One among many, who grants desires—

The wise who perceive Him as standing in oneself, They, and no others, have eternal peace! 14. ‘This is it!’—thus they recognize The highest, indescribable happiness. How, now, shall I understand ‘this’? Does it shine [of itself] or does it shine in reflection?