PURPORT

This is a quotation from Srimad-Bhagavatam (2.1.5). It is one's duty to understand the Supreme Personality of Godhead through the hearing process. This is called srotavyah. If one has heard properly about the Supreme Personality of Godhead, his duty is to glorify the Lord and preach His glories. This is called kirtitavyah. When one hears about the Lord and glorifies Him, it is natural to think of Him. This is called smartavyah. All this must be carried out if one actually wants to be immune from fear.