Srimad Bhagavatam Canto 11, Chapter 21, Text 37

SB 11.21.37

mayopabrmhitam bhumna
bhutesu ghosa-rupena
 visesurneva laksyate
As the unlimited, unchanging and omnipotent Personality of Godhead dwelling within all living beings, I personally establish the Vedic sound vibration in the form of omkara within all living entities. It is thus perceived subtly, just like a single strand of fiber on a lotus stalk.
The Supreme Personality of Godhead personally resides within the heart of every living entity, and from this verse we can understand that the seed of all Vedic knowledge is also situated within all living beings. In this way, the process of awakening Vedic knowledge, and thereby awakening one’s eternal relationship with God, is natural and necessary for everyone. All perfection is found within the heart of the living being; as soon as the heart is purified by chanting the holy names of God, that perfection, Krsna consciousness, immediately awakens.
Srimad Bhagavatam Canto 11, Chapter 21, Text 36
Srimad Bhagavatam Canto 11, Chapter 21, Text 38-40