When Krsna descends anywhere, He is accompanied by His own associates. These associates are not ordinary living beings. Krsnas pastimes are eternal, and when He descends, He comes with His associates. Therefore Nanda and mother Yasoda are the eternal father and mother of Krsna. This means that whenever Krsna descends, Nanda and Yasoda, as well as Vasudeva and Devaki, also descend as the Lords father and mother. Their personalities are expansions of Krsnas personal body; they are not ordinary living beings. Maharaja Pariksit knew this, but he was curious to know from Sukadeva Gosvami whether it is possible for an ordinary human being to come to this stage by sadhana-siddhi. There are two kinds of perfectionnitya-siddhi and sadhana-siddhi. A nitya-siddha is one who is eternally Krsnas associate, an expansion of Krsnas personal body, whereas a sadhana-siddha is an ordinary human being who, by executing pious activities and following regulative principles of devotional service, also comes to that stage. Thus the purpose of Maharaja Pariksits inquiry was to determine whether an ordinary human being can attain the position of mother Yasoda and Nanda Maharaja. Sukadeva Gosvami answered this question as follows.