One verse

Srimad Bhagavatam 10.14.6

10.14.6

तथापि भूमन्महिमागुणस्य ते विबोद्धुमर्हत्यमलान्तरात्मभि: । अविक्रियात् स्वानुभवादरूपतो ह्यनन्यबोध्यात्मतया न चान्यथा ॥ ६ ॥

tathāpi bhūman mahimāguṇasya te viboddhum arhaty amalāntar-ātmabhiḥ avikriyāt svānubhavād arūpato hy ananya-bodhyātmatayā na cānyathā

tathā api
nevertheless
bhūman
O limitless one
mahimā
the potency
aguṇasya
of Him who has no material qualities
te
of You
viboddhum
to understand
arhati
one is able
amala
spotless
antaḥ-ātmabhiḥ
with mind and senses
avikriyāt
not based on material differentiations
sva-anubhavāt
by perception of the Supreme Soul
arūpataḥ
without attachment to material forms
hi
indeed
ananya-bodhya-ātmatayā
as self-manifested, without the help of any other illuminating agent
na
not
ca
and
anyathā
otherwise

Nondevotees, however, cannot realize You in Your full personal feature. Nevertheless, it may be possible for them to realize Your expansion as the impersonal Supreme by cultivating direct perception of the Self within the heart. But they can do this only by purifying their mind and senses of all conceptions of material distinctions and all attachment to material sense objects. Only in this way will Your impersonal feature manifest itself to them.