In the material world, because of intense lust and desire for enjoyment, one becomes implicated in sinful life more and more (kama esa krodha esa rajo-guna-samudbhavah). Therefore the quality of fear is one of the aspects of material life (ahara-nidra-bhaya-maithunam ca). But if one becomes Krsna conscious, the process of devotional service, sravanam kirtanam, diminishes ones polluted life of material existence, and one is purified and protected by the Supreme Personality of Godhead. Srnvatam sva-kathah krsnah punya-sravana-kirtanah [SB 1.2.17]. In devotional life, one has faith in this process. Such faith is one of the six kinds of surrender. Raksisyatiti visvasah (Hari-bhakti-vilasa 11.676). One of the processes of surrender is that one should simply depend on Krsna, convinced that He will give one all protection. That Krsna will protect His devotee is a fact, and Nanda Maharaja and the other inhabitants of Vrndavana accepted this very simply, although they did not know that the Supreme Lord Himself was present before them. There have been many instances in which a devotee like Prahlada Maharaja or Dhruva Maharaja has been put in difficulty even by his father but has been saved under all circumstances. Therefore our only business is to become Krsna conscious and depend fully on Krsna for all protection.