ISKCON : brama- madva gaudiya- sampradaya

ISKCON Gaudiya Vaishnavas often refer to lexicons of Amarakośa thesaurus of Sanskrit for meanings of words and according to the writings of the Gaudiya acharyas, the word guru is very often defined as one who; represents the Supreme Lord, who does not manufacture anything, but teaches in accordance with the scriptures (sastra) and the previous ācāryas.^[2] This definition of a wider concept of guru in Hinduism links the question of the relative authority of the guru's words and those of the sastra in a crucial relationship. Baladeva Vidyabhushana, 18th century principal Gaudiya theologian used and defined guru in his commentaries on Vedanta-sutra. Specifically, in the comments to the sutras 3.3.44-45 Baladeva Vidyabhushana argues that the concept of guru's grace plays the central role in the system of teacher-student succession."