A pure devotee of Narayana is never afraid of any material danger. There are many examples of devotees such as Prahlada Maharaja, who was tortured by his father but was not at all afraid, although he was only a five-year-old boy. Therefore, following the examples of Ambarisa Maharaja and Prahlada Maharaja, a devotee should learn how to tolerate all such awkward positions in this world. Devotees are often tortured by nondevotees, yet the pure devotee, depending fully on the mercy of the Supreme Personality of Godhead, is never disturbed by such inimical activities.

From Srila Prabhupada’s purport to SB 9.4.47