Source: Srimad Bhagavatham : Its Message for the Modern Man by Swami Shantananda Puri Maharaj
Srimad Bhagavatham (11:14:26)
यथा यथात्मा परिमृज्यते‘सौ
तथा तथा पश्यति वस्तु सूक्ष्मं
As and when a person loses himself in the contemplation of the Lord and in chanting His names and listening to His glories, his mind gets purified and he begins to see clearly the subtlest principle, namely, the Lord.