Gnaneshwar Charitam Vol III Book VIII Chp 2 Shlokas 1 - 2
श्रीसद्गुरुरुवाच
शूद्रो भवेज्जन्मनैव संस्कारेण द्विजः स्मृतः |
मुनिर्मननशीलक्ष्च मन्त्रद्रष्टा ऋषिर्भवेत् ||
अद्वैतभावसम्युक्तो ब्रह्मविद् ब्राह्मणो भवेत् |
वासुदेवः सर्वमिति ज्ञानिनस्ते सुदुर्लभाः ||
Shri Sadguru said
One is not considered a high-born because of his birth. One becomes a dwija due to the ritual of upanayanam. One is considered a seer because of his deep immersion in meditation. One who expounds mantras becomes a rich. He who has realized the Brahman with a clear perception of the idea of monism or lack of duality between the individual soul and the universal soul, is a true brahmana. It is very rare to find such a man of profound wisdom who realizes that everything is the manifestation of Lord Shri Vasudeva Himself