Source: Srimad Bhagavatham : Its Message for the Modern Man by Swami Shantananda Puri Maharaj
Srimad Bhagavatham – Chapter VI - Pushti Skandha
This chapter deals with the unknown – but most essential – factor in one's spiritual life, known as the Grace (Anugraha) of the Lord. Paul Brunton calls it an X-factor as it is both unknown and unpredictable. This Skandha also prescribes "Nama Smaranam'', remembering or chanting any of the names of the Lord – whether from the bottom of one's heart with deep faith and devotion, or even unintentionally – as also prayers from the heart, as the sure means to attain the Grace of the Lord.
Please check these: Excerpts from a discourse by our Sri Sri Muralidhara Swamiji