The living entity is eternal. Thus he has neither birth nor death (na hanyate hanyamāne śarīre). According to the reactions of one’s fruitive activities, one takes birth in various species of life among the birds, beasts, trees, human beings, demigods and so on, thus rotating through various bodies. For a certain period of time, one receives a particular type of body as a son or father in a false relationship. All our relationships in this material world with friends, relatives or enemies consist of duality, in which one feels happy and distressed on the basis of illusion. The living entity is actually a spiritual soul who is part and parcel of God and has nothing to do with relationships in the world of duality. Therefore Nārada Muni advised Citraketu not to lament for his so-called dead son.