Prahlada says in his hymn to Sri Nrisimhadeva:
My dear Lord, O infallible one, my position is like that of a person who has many wives, all trying to attract him in their own way. For example, the tongue is attracted to palatable dishes, the genitals to sex with an attractive woman, and the sense of touch to contact with soft things. The belly, although filled, still wants to eat more, and the ear, not attempting to hear about You, is generally attracted to songs. The sense of smell is attracted to yet another side, the restless eyes are attracted to scenes of sense gratification, and the active senses are attracted elsewhere. In this way I am certainly embarrassed.
So far as my limited knowledge goes, Prahlada was a small boy when his father was killed. How could he then be attracted to the sensual pleasures as mentioned above? All the paintings I have seen also depicted him like a lad.
Does anybody know the exact age of Prahlada at the time when his father was slayed by Sri Nrisimha?