Chandogya Upanishad 7.25

sa evādhastāt sa upariṣṭāt sa paścāt sa purastāt sa dakṣiṇataḥ sa uttarataḥ sa evedaṃ sarvam iti athāto 'haṃkārādeśa eva aham evādhastād aham upariṣṭād ahaṃ paścād ahaṃ purastād ahaṃ dakṣiṇato 'ham uttarato 'ham evedaṃ sarvam iti

'The Infinite indeed is below, above, behind, before, right and left—it is indeed alt this. 'Now follows the explanation of the Infinite as the I: I am below, I am above, I am behind, before, right and left—I am all this.

athāta ātmādeśa eva ātmaivādhastād ātmopariṣṭād ātmā paścād ātmā purastād ātmā dakṣiṇata ātmottarata ātmaivedaṃ sarvam iti sa vā eṣa evaṃ paśyann evaṃ manvāna evaṃ vijānann ātmaratir ātmakrīḍa ātmamithuna ātmānandaḥ sa svarāḍ bhavati tasya sarveṣu lokeṣu kāmacāro bhavati atha ye 'nyathāto vidur anyarājānas te kṣayyalokā bhavanti teṣāṃ sarveṣu lokeṣv akāmacāro bhavati

'Next follows the explanation of the Infinite as the Self: Self is below, above, behind, before, right and left—Self is all this. 'He who sees, perceives, and understands this, loves the Self, delights in the Self, revels in the Self, rejoices in the Self—he becomes a Svarâg, (an autocrat or self-ruler); he is lord and master in all the worlds. 'But those who think differently from this, live in perishable worlds, and have other beings for their rulers.