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Śrīmad-Bhāgavatam
[Canto 1, Ch. 12]
iti —thus;  rājña —unto the King;  upādiśya —having advised;  viprā —persons who are well versed in the  Vedas ;  jātaka-kovidāḥ —persons expert in astrology and in the performance of birth ceremonies;  labdha-apacitayaḥ —those who had received sumptuously as remuneration;  sarve —all of them;  pratijagmuḥ —went back;  svakān —their own;  gṛhān —houses.
TRANSLATION
Thus those who were expert in astrological knowledge and in performance of the birth ceremony instructed King Yudhiṣṭhira about the future history of his child. Then, being sumptuously remunerated, they all returned to their respective homes.
PURPORT
The  Vedas  are the storehouse of knowledge, both material and spiritual. But such knowledge aims at perfection of self-realization. In other words, the  Vedas  are the guides for the civilized man in every respect. Since human life is the opportunity to get free from all material miseries, it is properly guided by the knowledge of the  Vedas , both in the matters of material needs and spiritual salvation. The specific intelligent class of men who were devoted particularly in the knowledge of  Vedas  were called the  vipras , or the graduates of the Vedic knowledge. There are different branches of knowledge in the  Vedas , of which astrology and pathology are two important branches necessary for the common man. So the intelligent men, generally known as the  brāhmaṇas , took up all the different branches of Vedic knowledge to guide society. Even the department of military education ( Dhanur-veda ) was also taken up by such intelligent men, and the  vipras  were also teachers of this section of knowledge, as were Droṇācārya, Kṛpācārya, etc.
The word  vipra  mentioned herein is significant. There is a little difference between the  vipras  and the  brāhmaṇas . The  vipras  are those who are expert in  karma-kāṇḍa , or fruitive activities, guiding the society towards fulfilling the material necessities of life, whereas the  brāhmaṇas  are expert in spiritual knowledge of transcendence. This department of knowledge is called  jñāna-kāṇḍa , and above this there is the  upaśana-kāṇḍa . The culmination of  upaśana-kāṇḍa  is devotional service of the Lord Viṣṇu, and when the  brāhmaṇas  achieve perfection, they are called Vaiṣṇavas. Viṣṇu worship is the highest of all modes of worship. Elevated  brāhmaṇas  are Vaiṣṇavas