One verse

Srimad Bhagavatam 12.8.48

12.8.48

यं वै न वेद वितथाक्षपथैर्भ्रमद्धी: सन्तं स्वकेष्वसुषु हृद्यपि द‍ृक्पथेषु । तन्माययावृतमति: स उ एव साक्षा- दाद्यस्तवाखिलगुरोरुपसाद्य वेदम् ॥ ४८ ॥

yaṁ vai na veda vitathākṣa-pathair bhramad-dhīḥ santaṁ svakeṣv asuṣu hṛdy api dṛk-patheṣu tan-māyayāvṛta-matiḥ sa u eva sākṣād ādyas tavākhila-guror upasādya vedam

yam
whom
vai
indeed
na veda
does not recognize
vitatha
deceptive
akṣa-pathaiḥ
by methods of empirical perception
bhramat
becoming diverted
dhīḥ
whose intelligence
santam
present
svakeṣu
within one’s own
asuṣu
senses
hṛdi
within the heart
api
even
dṛk-patheṣu
among perceived objects of the external world
tat-māyayā
by His illusory potency
āvṛta
covered over
matiḥ
his understanding
saḥ
he
u
even
eva
indeed
sākṣāt
directly
ādyaḥ
originally (in ignorance)
tava
of You
akhila-guroḥ
the spiritual master of all living beings
upasādya
obtaining
vedam
the knowledge of the Vedas.

A materialist, his intelligence perverted by the action of his deceptive senses, cannot recognize You at all, although You are always present within his own senses and heart and also among the objects of his perception. Yet even though one’s understanding has been covered by Your illusory potency, if one obtains Vedic knowledge from You, the supreme spiritual master of all, he can directly understand You.