nāyam ātmā pravacanena labhyo
nāyam ātmā pravacanena labhyo
na medhayā na bahunā śrutena |
yam evaiṣa vṛṇute tena labhyaḥ
tasyaiṣa ātmā vivṛṇute tanūṁ svām ||
(Kaṭha Upaniṣad: 1.2.23; cited in Bhagavat Sandarbha: 121)
“The Ātmā is attainable neither by exposition, nor by intellect, nor by extensive hearing [of śāstra]. The Ātmā is attainable by one whom he chooses. To him [who is so chosen] the Ātmā reveals his own form.”