Brhadaranyaka Upanishad 3.7

 11. ‘He who dwells in the moon and the stars, yet is within the moon and the stars, whom the moon and the stars do not know, whose body the moon and the stars are, who controls the moon and the stars from within, he is your self, the inner controller, the immortal.’

12. ‘He who dwells in the ether, yet is within the ether, whom the ether does not know, whose body the ether is, who controls the ether from within, he is your self, the inner con­troller, the immortal.’

13. ‘He who dwells in the darkness, yet is within the darkness, whom the darkness does not know, whose body the darkness is, who controls the darkness from within, he is your self, the inner controller, the immortal.’