Kaṭha Upaniṣad 5.9

5.9

yadyevamaliṅgaḥ tadā tadadhigamopāyaḥ kaḥ ? iti tatrāha- na saṃdṛśa iti | asya ātmano rūpaṃ saṃdṛśe samyak darśanaṃ jñānaṃ tadviṣayo ghaṭādiprapañcaḥ tatra na tiṣṭhati | kaścana kaścidapi lokaḥ enaṃ prakṛtaṃ ātmānaṃ cakṣuṣā cakṣurindriyopalakṣitasarvendriyeṇāpi na paśyati śṛṇoti vā, na śṛṇoti na spṛśatītyarthaḥ | tarhi kathaṃ tamātmānaṃ paśyellokaḥ ? iti tatrāha-hṛdeti | hṛcchabdena tatsthabuddhirucyate | hṛdā buddhyā | saṃkalpādivṛttimanmanaso niyantṛtvena īṣṭe iti marnāṭ tayā manīṣā | dhiyassattvāsattvasattvapariṇāmarūpākhaṇḍākāravṛttyā tasyā api svātiriktahetostadapahnavasiddhaṃ brahmamātramiti mananarūpeṇa manasā samyagjñānena abhiklṛptaḥ abhiprāśitaḥ san svamātratayā jñātuṃ śakyata iti vākyaśeṣaḥ | evaṃ enaṃ svamātratayā ye viduste tadvedanasamakālaṃ amṛtā bhavanti, "tamevaṃ jñātvā vidvāṃsa ihaivāmṛtā bhavanti " iti śruteḥ |
viṣayādivyāvṛttamanaso brahmaṇi sthiratā