Just as a piece of iron, which had been covered with the dust of centuries, might be lying near a magnet all the time, and yet not be attracted by it, but as soon as the dust is cleared away, the iron is drawn by the magnet; so, when the human soul, covered with the dust of ages, impurities, wickedness, and sins, after many births, becomes purified enough by these forms and ceremonies, by doing good to others, loving other beings, its natural spiritual attraction comes, it wakes up and struggles towards God. - Swami Vivekananda.