Śrī Kavi said: I consider that one whose intelligence is constantly disturbed by his falsely identifying himself with the temporary material world can achieve real freedom from fear only by worshiping the lotus feet of the infallible Supreme Lord. In such devotional service, all fear ceases entirely.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
कविरुवाच । मन्येऽकुतश्चिद्भयमच्युतस्य पादाम्बुजोपासनमत्र नित्यम् । उद्विग्नबुद्धेरसदात्मभावा- द्विश्वात्मना यत्र निवर्तते भीः
kaviruvāca | manye'kutaścidbhayamacyutasya pādāmbujopāsanamatra nityam | udvignabuddherasadātmabhāvā- dviśvātmanā yatra nivartate bhīḥ
SB 11.2.33