The great saints Aṅgirā and Nārada explained that the relationship between father and son is not factual; it is simply a representation of the illusory energy. The relationship did not exist before, nor will it stay in the future. By the arrangement of time, the relationship exists only in the present. One should not lament for temporary relationships. The entire cosmic manifestation is temporary; although not unreal, it is not factual. By the direction of the Supreme Personality of Godhead, everything created in the material world is transient. By a temporary arrangement, a father begets a child, or a living entity becomes the child of a so-called father. This temporary arrangement is made by the Supreme Lord. Neither the father nor the son exists independently.