yasya deve parā bhaktir yathā deve tathā guruḥ
yasya deve parā bhaktir yathā deve tathā guruḥ |
tasyaite kathitā hy arthāḥ prakāśante mahātmanaḥ ||
(Śvetāśvatara Upaniṣad: 6.23; cited in Hari-bhakti-vilāsa: 4.346; Bhagavat Sandarbha: 98; Bhakti Sandarbha: 5, 21, 209; Govinda-bhāṣya: 3.3.44, 45, 3.4.50)
“These discussed subjects [i.e., the teachings a guru gives to a disciple regarding Brahma-vidyā] are revealed to the great soul who has pure bhakti to Deva, and as to Deva, so also to guru.”