The summary of the Fifteenth Chapter is as follows. In the previous chapter, Śrī Nārada Muni proved the importance of the brāhmaṇa in society. Now, in this chapter, he will show the differences between different grades of brāhmaṇas. Among the brāhmaṇas, some are householders and are mostly attached to fruitive activities or the betterment of social conditions. Above them, however, are brāhmaṇas who are very much attracted by austerities and penances and who retire from family life. They are known as vānaprasthas. Other brāhmaṇas are very much interested in studying the Vedas and explaining the purport of the Vedas to others. Such brāhmaṇas are called brahmacārīs. And still other brāhmaṇas are interested in different types of yoga, especially bhakti-yoga and jñāna-yoga. Such brāhmaṇas are mostly sannyāsīs, members of the renounced order of life.