Lord Nrsimhadeva appeared for the benefit of all human society, not only for Prahlada’s personal benefit. The fierce form of Lord Nrsimhadeva may appear most awful to a nondevotee, but to the devotee the Lord is always affectionate as He is in other forms.
Conditioned life in the material world is actually extremely fearful; indeed, a devotee is not afraid of anything else. Fear of material existence is due to false ego. Therefore the ultimate goal of life for every living entity is
to attain the position of being servant of the servant of the Lord.
The miserable condition of the living entities in the material world can be remedied only by the mercy of the Lord. Although there are so-called material protectors like Lord Brahma and the other demigods, or even one’s own father, they are unable to do anything if one is neglected by the Supreme Personality of Godhead. However, one who has fully taken shelter of the Lord’s lotus feet can be saved from the onslaught of material nature.
Therefore every living entity should be unattracted by material so-called happiness and should take shelter of the Lord by all means. That is the mission of human life. To be attracted by sense gratification is simply foolish.
Srimad-Bhagavatam Canto 7 Chapter 9 Introduction
taken from The Conch, New Govardhana, May edition.