Katha Upanishad · Chapter 4

// iti tṛtīyā vallī //
parāñci khāni vyatṛṇat svayaṃbhūs tasmāt parāṅ paśyati nāntarātman /
kaścid dhīraḥ pratyag ātmānam aikṣad āvṛttacakṣur amṛtatvam icchan

parācaḥ kāmān anuyanti bālās te mṛtyor yanti vitatasya pāśam /
atha dhīrā amṛtatvaṃ viditvā dhruvam adhruveṣv iha na prārthayante

yena rūpaṃ rasaṃ gandhaṃ śabdān sparśīṃś ca maithunān /
etenaiva vijānāti kim atra pariśiṣyate //
etad vai tat

svapnāntaṃ jāgaritāntaṃ cobhau yenānupaśyati /
mahāntaṃ vibhum ātmānaṃ matvā dhīro na śocati

ya imaṃ madhvadaṃ veda ātmānaṃ jīvam antikāt /
īśānaṃ bhūtabhavyasya na tato vijugupsate //
etad vai tat

yaḥ pūrvaṃ tapaso jātam adbhyaḥ pūrvam ajāyata /
guhāṃ praviśya tiṣṭhantaṃ yo bhūtebhir vyapaśyata //
etad vai tat

yā prāṇena saṃbhavati aditir devatāmayī /
guhāṃ praviśya tiṣṭhantīṃ yā bhūtebhir vyajāyata //
etad vai tat

araṇyor nihito jātavedā garbha iva subhṛto garbhiṇībhiḥ /
divediva īḍyo jāgṛvadbhir haviṣmadbhir manuṣyebhir agniḥ //
etad vai tat

yataś codeti sūryo astaṃ yatra ca gacchati /
taṃ devāḥ sarve arpitās tad u nātyeti kaścana //
etad vai tat

yad eveha tad amutra yad amutra tad anv iha /
mṛtyoḥ sa mṛtyum āpnoti ya iha nāneva paśyati

manasaivedam āptavyaṃ neha nānāsti kiṃcana /
mṛtyoḥ sa mṛtyuṃ gacchati ya iha nāneva paśyati

aṅguṣṭhamātraḥ puruṣo madhya ātmani tiṣṭhati /
īśāno bhūtabhavyasya na tato vijugupsate //
etad vai tat

aṅguṣṭhamātraḥ puruṣo jyotir iva adhūmakaḥ /
īśāno bhūtabhavyasya sa evādya sa u śvaḥ //
etad vai tat

yathodakaṃ durge vṛṣṭaṃ parvateṣu vidhāvati /
evaṃ dharmān pṛthak paśyaṃs tān evānu vidhāvati

yathodakaṃ śuddhe śuddham āsiktaṃ tādṛg eva bhavati /
evaṃ muner vijānata ātmā bhavati gautama