Bhagavata Purana 12.6.40-41
Srimad Bhagavatam · 6 · Verse 40-41
Sanskrit Original
शृणोति य इमं स्फोटं सुप्तश्रोत्रे च शून्यदृक् । येन वाग् व्यज्यते यस्य व्यक्तिराकाश आत्मन: ॥ ४० ॥ स्वधाम्नो ब्राह्मण: साक्षाद् वाचक: परमात्मन: । स सर्वमन्त्रोपनिषद्वेदबीजं सनातनम् ॥ ४१ ॥
śṛṇoti ya imaṁ sphoṭaṁ supta-śrotre ca śūnya-dṛk yena vāg vyajyate yasya vyaktir ākāśa ātmanaḥ
This oṁkāra, ultimately nonmaterial and imperceptible, is heard by the Supersoul without His possessing material ears or any other material senses. The entire expanse of Vedic sound is elaborated from oṁkāra, which appears from the soul, within the sky of the heart. It is the direct designation of the self-originating Absolute Truth, the Supersoul, and is the secret essence and eternal seed of all Vedic hymns.