Chāndogya Upaniṣad 7.12

7.12.1

ākāśo vāva tejaso bhūyān \
ākāśe vai sūryācandramasāv ubhau vidyun nakṣatrāṇy agniḥ \
ākāśenāhvāyati \
ākāśena sṛṇoti \
ākāśena pratisṛṇoti \
ākāśe ramate \
ākāśe na ramate \
ākāśe jāyate \
ākāśam abhijāyate \
ākāśam upāssveti \\712.1\

1. ‘Space (*ākāśa*), assuredly, is more than Heat. In Space, verily, are both sun and moon, lightning, stars and fire. Through Space one calls out; through Space one hears; through Space one answers. In Space one enjoys himself; in Space one does not enjoy himself. In Space one is born; unto Space one is born. Reverence Space.

7.12.2

sa ya ākāśaṃ brahmety upāste \
ākāśavato vai sa lokān prakāśavato 'saṃbādhān urugāyavato 'bhisidhyati \
yāvad ākāśasya gataṃ tatrāsya yathākāmacāro bhavati ya ākāśaṃ brahmety upāste \
asti bhagava ākāśād bhūya iti \
ākāśad vāva bhūyo 'stīti \
tan me bhagavān bravītv iti \\712.2\

2. He who reverences Space as Brahma—he, verily, attains spacious, gleaming, unconfined, wide-extending worlds. As far as Space goes, so far he has unlimited freedom, he who reverences Space as Brahma.’

‘Is there, Sir, more than Space?’

‘There is, assuredly, more than Space.’

‘Do you, Sir, tell me it.’