Bhagavata Purana 12.8.48
Srimad Bhagavatam · 8 · Verse 48
Sanskrit Original
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
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.