Śrī Īśopaniṣad (ईशावास्य उपनिषद्) Mantra IX

Mantra IX 

andhaḿ tamaḥ praviśanti

ye 'vidyām upāsate

tato bhūya iva te tamo

ya u vidyāyām ratāḥ

Śrī Īśopaniṣad (ईशावास्य उपनिषद्) Mantra VIII

Mantra VIII

sa paryagāc chukram akāyam avraṇam

asnāviram śuddham apāpa-viddham

kavir manīṣī paribhūḥ svayambhūr

yāthātathyato 'rthān vyadadhāc chāśvatībhyaḥ samābhyaḥ

Śrī Īśopaniṣad (ईशावास्य उपनिषद्) Mantra VII

Mantra VII

 yasmin sarvāṇi bhūtāny

ātmaivābhūd vijānataḥ

tatra ko mohaḥ kaḥ śoka

ekatvam anupaśyataḥ