Kaṭha Upaniṣad 1.24

1.24

yadvedanataḥ śokātyayo darśitastadadhigamopāyaḥ kaḥ ? ityata āha- nāyaṃ iti | ṛgādicaturvedapaṭhanapāṭhanāyamānapravacanena | ayamātmā na labhyaḥ nāpi granthārthadhāraṇāpaṭuśaktirūpamedhayā | nāpi bahubhyo bahudhā śrutaśravaṇena | tathā cet kenopāyena labhyate ? ityata āha- yaṃ iti | eṣa sādhako mumukṣuḥ yaṃ paramātmānaṃ sarvāpahnavasiddhaniṣpratiyogikasvamātratayā vṛṇute jānāti tenaiva jñātrā svāvaśeṣatayā ayamātmā labhyaḥ | svāvaśeṣadhiyā jānataḥ svātmā labhyata ityuktam | kathaṃ labhyate ? ityata āha- tasya iti | tasya brahmavidvariṣṭhasya eṣa paramātmā svāṃ tanūṃ niṣpratiyogikasvamātramiti svakīyayāthātmyaṃ [vi] vṛṇute prakāśayatītyarthaḥ |
śāntamānasaḥ evaṃ jñānapratibandhakaduścaritādivṛttimānābhāsamātravedāntaśra janitaprajñānena enaṃ prakṛtamātmānaṃ nāpnuyāt so'yaṃ ābhāsajñānītyavagamyata tadviparyayapāramārthikajñānī tu duścaritāt virataḥ karaṇagrāmalaulyāt samā samādhānaphalādapyupaśāntamānaso yathoktasādhanasaṃpanno mumukṣuḥ śrutyācāryaprasa janitaprajñānenainaṃ prakṛtamātmānaṃ niṣpratiyogikasvamātradhiyā prāpnoti videhamu bhavatītyarthaḥ |
brahmaṇa ātmābhedaḥ