Chandogya Upanishad (with commentary) · Chapter 7.6

ChUpBh_7,5.3 cittānupacitānhuddhimadguṇaiḥ sa cittopāsako dhruvānityādi coktārtham //3//
iti cchāndogyopaniṣadi saptamādhyāyasya pañcamaḥ khaṇḍaḥ
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START ChUp 7,6.1-2
dhyānaṃ vāva cittād bhūyaḥ |
dhyāyatīva pṛthivī |
dhyāyatīvāntarikṣam |
dhyāyatīva dyauḥ |
dhyāyantīvāpaḥ |
dhyāyantīva parvatāḥ |
dhyāyantīva devamanuṣyāḥ |
tasmād ya iha manuṣyāṇāṃ mahattāṃ prāpnuvanti dhyānāpādāṃśā ivaiva te bhavanti |
atha ye 'lpāḥ kalahinaḥ piśunā upavādinas te |
atha ye prabhavo dhyānāpādāṃśā ivaiva te bhavanti |
dhyānam upāssveti

sa yo dhyānaṃ brahmety upāste |
yāvad dhyānasya gataṃ tatrāsya yathākāmacāro bhavati yo dhyānaṃ brahmety upāste |
asti bhagavo dyānād bhūya iti |
dhyānād vāva bhūyo 'stīti |
tan me bhagavān bravītv iti