Generally, a man is born as an ordinary being, and by the purificatory processes he is born for the second time. When he sees a new light and seeks direction for spiritual progress, he approaches a spiritual master for instruction in the Vedas. The spiritual master accepts only the sincere inquirer as his disciple and gives him the sacred thread. In this way a man becomes twice-born, or a dvija. After qualifying as a dvija one may study the Vedas, and after becoming well versed in the Vedas one becomes a vipra. A vipra, or a qualified brāhmaṇa, thus realizes the Absolute and makes further progress in spiritual life until he reaches the Vaiṣṇava stage. The Vaiṣṇava stage is the postgraduate status of a brāhmaṇa. A progressive brāhmaṇa must necessarily become a Vaiṣṇava, for a Vaiṣṇava is a self-realized, learned brāhmaṇa.