Brihadaranyaka Upanishad (with commentary) · Chapter 5.7

BrhUpBh_5,6.1 upādhīnāmanekatvādanekaviśeṣaṇatvācca tasyaiva prakṛtasya brahmaṇo manaupādhiviśiṣṭasyopāsanaṃ vidhitsannāhamanomayo manaḥprāyo manasyupalabhyamānatvāt /
manasā copalabhata iti manomayo 'yaṃ puruṣo bhāḥ satyo bhā eva satyaṃ sadbhāvaḥ svarūpaṃ yasya so 'yaṃ bhāḥ satyo bhāsvara ityetat /
manasaḥ sarvārthāvabhāsamatvānmanomayatvāccāsya bhāsvaratvāt /
tasminnantarhṛdaye hṛdayasyāntastasminnityetat /
yathā vrīhirvā yavo vā pariṇamata evaṃ parimāṇastasminnantarhṛdaye yogibhirdṛśyata ityarthaḥ /
sa eṣa sarvasyeśānaḥ sarvasya svabhedajātasyeśānaḥ svāmī /
svāmitve 'pi sati kaścidamātyāditantro 'yaṃ tu na tathā kiṃ tarhyadhipatiradhiṣṭhāya pālayitā /
sarvamidaṃ praśāsti yadidaṃ kiñca yatkiñccitsarvaṃ jagattatsarvaṃ praśāsti /
eṃ manomayasyopāsanāttathārūpāpattireva phalam /
taṃ tathā yathepāsate tadeva bhavatīti brāhmaṇam //1//
iti śrīmadbṛhadāraṇyakopaniṣadbhāṣye pañcamādhyāyasya ṣaṣṭhaṃ brāhmaṇam //6//
START BrhUp 5,7.1
vidyud brahmety āhuḥ |
vidānād vidyut |
vidyaty enaṃ pāpmano ya evaṃ veda vidyud brahmeti |
vidyud dhy eva brahma